What you need to know about Trump's 2nd impeachment trial and the Best Way to watch

Former President Donald Trump's historic second impeachment trial is set to start Tuesday afternoon and will concentrate on his alleged role in inciting the deadly Capitol insurrection on Jan. 6.

Regardless of Trump being from office, some Congress members have been determined to keep him accountable and prevent him from holding future office, which senators could even vote if he's convicted.

Here's what you Want to understand before the impeachment trial starts:

Can members of this GOP service Trump's impeachment?

On Jan. 13, 10 Republicans combined House Democrats to bill Trump using one article of impeachment. The final vote was 232-197.

However, nearly all Republican senators are likely to vote to get an acquittal, as they did throughout Trump's first impeachment. On Jan. 26, at a 55-45 vote, many Republicans voted the trial was unconstitutional. For Trump to be convicted, all of Democrats and 17 Republicans must vote yes.

What signs are Democrats having to support this article of impeachment?

House Democrats filed an 80-page brief, detailing Trump's"unmistakable" role in influencing his supporters' activities in the Capitol. House impeachment managers argue the Jan. 6 riot was a final attempt to overturn the presidential election results that were certified after that day. Democrats intend to use Trump's actions leading up to the mortal insurrection to prove the events that transpired were calculated and encouraged by the former president, sources told ABC News.

While it is unclear if both sides will call witnesses, House impeachment managers have asked that Trump whined under oath. Trump's defense group quickly rejected the idea and called the request a"public relations stunt"

What's Trump's defense?

Trump's newly appointed legal team also submitted its brief on Feb. 2, saying the trial is unconstitutional because Trump is no longer in office. The trial legality has been called into question since the start however, the Senate voted to proceed.

Trump's team is denying that he violated the oath of office. Its short argues that Trump's use of social media and comments made on Jan. 6 are shielded by the First Amendment. There's a chance that Trump's defense may contend there was election fraud regardless of Trump and his allies losing multiple court cases making that argument as well as the 2020 election results being certified by Congress.

Trump's lawyers filed a second brief on Feb.8, further elaborating their debate against the trial's constitutionality and asking the Senate to dismiss the charges. House impeachment managers followed using a five-page reaction to Trump's legal group. Their response isn't thought to be a rebuttal, however, one is expected to be filed prior to the trial begins.

Will there be an increase in safety?

Washington, D.C., Mayor Muriel Bowser, at a press conference on Jan. 28, said there could be additional security from the district during Trump's impeachment trial. Approximately 7,000 National Guardsmen remain in Washington for an excess measure of precaution following the Capitol riot that left five dead.

Here's how you can watch Trump's 2nd impeachment trial:

Tune into"ABC News Live." Beginning at 1 p.m. for complete coverage and analysis of Trump's next impeachment trial.

Once the Senate floor is opened, there'll be four hours of debate on constitutionality followed by a vote. Senate Majority Leader Chuck Schumer has decided opening arguments will start on Wednesday with House impeachment managers; every side will have 16 hours. Questions and responses will follow opening arguments. The trial length remains unknown, but ABC News' sources consider the trial could be over early next week.