Going head-to-snout with one of the planet's deadliest predators is usually the plot of a horror movie – but for the Northern Territory government's Crocodile Management Unit, it's a Thursday. Literally.

Last Thursday was the day the team set out to see if they could track, trap and transport a massive 4.5-metre saltwater crocodile that had been getting a little too close to the Nauiyu community on the Daly River, in the Katherine region of the Top End.

The team, led by veteran croc wrangler Tom Nichols and aided by police, set a trap in the river on Thursday – and by Saturday the big beast was on its way to a crocodile farm.

Mr Nichols told nine.com.au that even though everybody involved in the situation was well-trained, there was no guarantee of safety when coming up against this kind of apex predator.

"There's always an element of danger," he said.

"You have to be careful, but everyone's trained and they know what they have to do."

Mr Nichols has been tracking and trapping crocodiles in the NT for 40 years, becoming part of the Crocodile Management Unit when it was established 23 years ago.

"That's when it became a full-time job," he said.

And full-time experts are needed, given how the nature of Mr Nichols' job has changed over the years.

When he began the trade, the goal was to reintroduce crocodiles to areas where they had been hunted out.

But since salties were made a protected species in the 1970s, the population has steadily risen to booming heights, meaning the focus now was on making sure there wasn't any dangerous "interaction" between the deadly reptiles and people.

Hence the need to trap the 4.5-metre monster that had been lingering around the community.

Mr Nichols said it was the biggest they'd caught so far this year.

"The Daly River has the highest concentration of crocodiles, and the floods during the wet season bring the rivers up closer to the communities," he said.

"They were getting concerned and called the police, and the police called us."

The team does provide training, particularly to Parks and Wildlife employees.

But there's still no substitute for the experts in a dangerous situation – and after 40 years of tangling with some of the world's biggest predators, Mr Nichols still wouldn't have it any other way.

"I still get excited to get up in the morning with this job," he said.

"I wouldn't do it if I didn't like it, so I must like it."

He urged people in the NT to be "croc-wise" all year around, especially during the wet season – keep an eye on your surroundings near water, and only swim in places determined to be crocodile-safe.

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Donald Trump has made no mention of his impeachment in a video posted on the official White House Twitter account.

Instead the president railed against "the unprecedented assault on free speech" after his own accounts were banned from Twitter, Facebook and Instagram.

"The efforts to censor, cancel and blacklist our fellow citizens are wrong, and they are dangerous," he said.

LIVE UPDATES: Trump impeachment reaction and analysis

"What is needed now is for us to listen to one another, not to silence one another."

He did not make specific mention of his own accounts being deleted from Twitter, Facebook and Instagram after his posts were deemed to be encouraging violence.

Several other accounts affiliated with Mr Trump were blocked soon after as he sought a way to keep tweeting.

Yesterday YouTube announced it was suspending the president's account for one week for inciting violence.

"After careful review, and in light of concerns about the ongoing potential for violence, we removed new content uploaded to the Donald J. Trump channel and issued a strike for violating our policies for inciting violence," a YouTube spokesperson said in a statement.

"As a result, in accordance with our long-standing strikes system, the channel is now prevented from uploading new videos or livestreams for a minimum of seven days—which may be extended."

READ MORE: What's next for Trump after historic impeachment vote

Mr Trump also decried the violence on Capitol Hill immediately following a rally where he called on his supporters to march on the building in an effort to block the election results being certified.

"No true supporter of mine could ever support political violence," he said.

"No true supporter of mine could ever threaten or harass their fellow American."

He vowed that everyone involved in the attacks would be brought to justice.

EXPLAINER: Why Trump's impeachment is very different this time

He also warned anybody considering acts of violence in the lead-up to the inauguration of Joe Biden, though he did not say the president-elect's name.

"There must be no violence, no lawbreaking and no vandalism of any kind," the outgoing president said.

"In Washington DC we are bringing in thousands of National Guard members."

There are currently more US troops in Washington DC than in Afghanistan.

Earlier today 10 Republicans joined with the entire House Democratic caucus to impeach Mr Trump.

Mr Trump is the first president to be impeached twice.

EXPLAINED: The process of impeachment

House Speaker Nancy Pelosi signed the articles of impeachment to be sent to the Senate "sadly".

"No-one is above the law, not even the president of the United States," she said.

"Donald Trump is a clear and present danger to our country."

She also named a group of congress members who will serve as impeachment managers for the trial to be conducted in the Senate.

But Mr Trump won't be removed from office early as a result of impeachment, with Senate Majority Leader Mitch McConnell saying there is not time to.

"Given the rules, procedures and Senate precedents that govern presidential impeachment trials, there is simply no chance that a fair or serious trial could conclude before President-elect Biden is sworn in next week," Senator McConnell said in a statement.

"The Senate has held three presidential impeachment trials. They have lasted 83 days, 37 days and 21 days respectively."

Senator McConnell said the next seven days should be focused on an orderly transition.

By the time Mr Biden is inaugurated as president, Senator McConnell will lose his position as the Senate's leader, with the Democrats taking control.

President Donald Trump has been impeached again – the first leader in US history to be impeached twice by the House.

The question now is whether he'll become the first President to be convicted by the Senate and removed from office.

What's next?

Impeachment in a two-part process. The House introduces and passes the articles of impeachment, but the Senate is where the person being impeached faces a trial – and potential punishment.

LIVE UPDATES: At least 217 members vote to impeach Trump

What does the Constitution say about the Senate's role?

Not much. The passage is pretty straightforward. Here it is: "The Senate shall have the sole Power to try all Impeachments. When sitting for that Purpose, they shall be on Oath or Affirmation. When the President of the United States is tried, the Chief Justice shall preside: And no Person shall be convicted without the Concurrence of two thirds of the Members present." (Article 1, Section 3)

Are there rules?

Yes. The Senate has a set of rules first created around the impeachment of Andrew Johnson back in 1868 and then updated in 1986. Senators take an oath before the proceedings. There's a call to order each day.

READ MORE: YouTube suspends Trump account over violence

https://twitter.com/ccroucher9/status/1349470671785455616?ref_src=twsrc%5Etfw

The Chief Justice has specific duties. There are set time limits for arguments and rebuttals and all questions from senators for the House and Mr Trump lawyers must be submitted in writing and read by the Chief Justice.

How many votes were required to convict Trump?

Conviction requires two-thirds of those present. If all 100 senators are present, that's 67 senators. Assuming those two Georgians are seated, that means there are 50 senators from each party and 17 Republicans would be required. However! Pay close attention to the rules, which require two-thirds of those present.

READ MORE: How Donald Trump's impeachment is different this time around…and why he should be worried

If those two Democrats from Georgia are not yet seated, it might require 66 senators. If some number of Republicans didn't want to vote against Trump but also didn't want to vote to convict, they could skip the vote and change the ratio. That kind of thing has been known to happen, although not during impeachment proceedings.

When will this trial get started?

That's not entirely clear. Senate Majority Leader Mitch McConnell has indicated he will not bring senators back until the last day of Trump's term – January 19 – at the earliest.

https://twitter.com/senatemajldr/status/1349476803514146819?ref_src=twsrc%5Etfw

He has issued a statement outlining what he sees as the way forward.

Can the trial be conducted in a day?

Almost certainly not. This will take some days or even weeks for the group of House legislators who will make the case against Trump and his lawyers to answer. So a trial can't practically happen until after President-elect Joe Biden is inaugurated on January 20.

So Trump will be out of office before the trial ends?

Yes. The senators will vote on impeaching a former President.

What's the point of holding an impeachment trial for a former President?

There is precedent for impeaching former officials. While the main penalty for a guilty verdict in an impeachment trial is removal from office, senators could vote to bar Mr Trump from holding office in the future – remember, he has not ruled out running for president in 2024. He could also lose his six-figure pension and other post-presidential perks.

READ MORE: Trump heads to Texas border in final days to showcase wall

But Biden will be President. Won't the Senate be busy with other things?

Yes. Big time. They will be busy with confirmation hearings for Mr Biden's Cabinet nominees – at least four are already scheduled for the week of January 20.

Senators could be called on to draft legislation having to do with the pandemic or economic relief – Mr Biden wants to increase relief checks to US$2000. So impeachment won't be the only thing on their plate. And it's likely they'll only spend a portion of each day on Mr Trump's trial.

They could also, under the rules, appoint a special committee to hear the case, but this seems unlikely. One thing to keep in mind: While Mr McConnell sets the schedule as Senate majority leader now, he'll lose that status as soon as the results of Georgia's January 5 Senate run-off elections are certified and the two new Democratic senators, Jon Ossoff and Raphael Warnock, are seated. At that point, New York Democratic Sen. Chuck Schumer will become Senate majority leader and will have more control over the proceedings.

Impeachment failed the first time against Trump. What's different now?

In a word, Republicans. In the first Trump impeachment trial, only one Republican senator – Mitt Romney of Utah – voted to remove him from office. This time, McConnell, rather than protecting Mr Trump, is said to be happy about the effort as a way to excise Mr Trump or purge him from the GOP. Will that lead to more votes to punish Mr Trump? It's not clear.

What's the historical precedent?

There have been three previous presidential impeachments, including Mr Trump's first. President Andrew Johnson was impeached, but survived the Senate trial by one vote after seven Republicans broke ranks with their party. Johnson did not win election after his impeachment.

READ MORE: Donald Trump rails against 'assault on free speech', doesn't mention impeachment

President Bill Clinton was impeached in his second term and was easily acquitted; less than a majority of senators supported removing him from office, far from the two thirds required. It was a similar result for Mr Trump's first impeachment, when only Mr Romney joined Democrats and less than a majority of senators supported his conviction and removal from office.