But even if Tuesday’s vote is not in question the constitutionality question looms over the entirety of the trial, because Republicans have coalesced around the argument as a reason to acquit Trump. Conviction requires two-thirds majority, or at least 17 Republican senators to join all members of the Democratic caucus.
Democrats have argued there’s plenty of precedent to hold the trial for Trump, who was impeached by the House while he was still in office. They’ve pointed to legal scholars from both sides of the political spectrum saying the Senate has jurisdiction to convict Trump, as well as the Senate precedent holding trials previously for former officials who were impeached.
Trump’s lawyers and many Republican senators, however, say they believe the trial is unconstitutional because Trump is no longer president.
Last month, five Republican senators voted against Paul’s motion to dismiss the trial, and it’s not clear if there have been any shifts. In a key sign showing the hurdles for convicting the former President, Missouri Sen. Roy Blunt, a member of Senate GOP leadership, said Monday he believes the proceedings are unconstitutional and he’s seen nothing that will change his mind so far.
Blunt said he will vote the same way Tuesday on the constitutional question as he will on the ultimate acquittal vote.
“I don’t know of anyone that their mind is not made up ahead of the impeachment trial,” said Sen. James Lankford, an Oklahoma Republican. “The first question on the issue of constitutionality, that drives a lot of it and everything else. I think people are pretty locked down.”
Unlike the last trial, senators will not be required to sit at their desk throughout the proceedings, due to the Covid-19 pandemic. They will be able to instead watch from the gallery above the Senate chamber or in a room off the floor that will show the trial on television. Masks will not be required on the floor, unlike on the House floor, but the expectation is the managers and Trump’s lawyers will wear masks unless they are speaking.
Senators are not allowed to speak during the trial as jurors.
After Tuesday’s debate and vote, the House managers will have 16 hours over two days to make their presentation beginning Wednesday, followed by two days for Trump’s lawyers. Senators will then have four hours to ask questions submitted in writing to both sides, and the Senate could debate and vote on whether to subpoena witnesses, though it remains unclear whether any will be sought at trial.
CNN’s Ryan Nobles contributed to this report.