Trump impeachment trial live updates: Biden says charge 'not in dispute' in 1st comments on acquittal

President Joe Biden will deliver remarks on the "coup in Burma" at 1 p.m. and then heads to the Pentagon with Vice President Kamala Harris at 2 p.m.

At a White House briefing earlier Wednesday, Chief White House Correspondent Cecilia Vega pushed press secretary Jen Psaki on Biden's lack of engagement on impeachment.

"How should the American public interpret the President's silence on this? Is he not invested in the outcome of this trial, or is he?" Vega asked.

"The American public should -- should read it as his commitment to delivering on exactly what they elected him to do, which is not to be a commentator on the daily developments of an impeachment trial, but to push forward an American rescue plan that will put people back to -- that will ensure people are back to work, get the assistance they need, get shots in arms, reopen schools," Psaki said. "That's what they asked him to do, and that's what he's focused on doing every day."

When Vega pressed further on whether Biden would address impeachment once the trial was complete, Psaki didn't rule it out.

-ABC News' Molly Nagle and Sarah Kolinovsky

Lead impeachment manager Rep. Jamie Raskin, D-Md., preparing to lay out the impeachment managers' arguments to the Senate, said their case is one "based in facts" and the trial "is about holding accountable the person singularly responsible for inciting the attack."

"The evidence will show you that ex-President Trump was no innocent bystander," Raskin said. "The evidence will show he clearly incited the insurrection. It will show Donald Trump surrendered his role as commander-in-chief and became the incited-in-chief, of a dangerous insurrection." 

Raskin said Trump "reveled" in the moment, sending tweets to further incite the mob, and sympathized with them while the attack was underway. 

"To us it may have felt like chaos and madness, that there was method in the madness that day," Raskin said, before laying out how Trump primed his supporters for a "stolen election" in the weeks ahead of it and continued "the big lie" after the attack.

Senators are back at the Capitol for the continuation of Trump's second impeachment trial, the first trial of a former a president, and one in which the lawmakers are themselves witnesses to the alleged crime of "incitement of insurrection."

Here are photos of the Jan. 6 attack on the Capitol.

The Senate has reconvened for Trump's second impeachment trial and will hear opening arguments from House impeachment managers on Wednesday.

Senate Chaplain Barry Black led the chamber in a prayer. Presiding officer Sen. Patrick Leahy, D-Vt., led the group through the Pledge of Allegiance, followed by the traditional "Hear ye! Hear ye! Hear ye!" proclamation from the Sergeant-at-Arms.

The House managers are beginning their presentation in support of the singular article of impeachment for "incitement of insurrection" and have up to eight hours on Wednesday, receiving up to 16 hours in full to make their opening arguments over two days.

The managers are expected to show "never-seen-before" security footage of the Jan. 6 attack on the Capitol, aides said, after playing out a stunning 13-minute montage of the attack interspersed with Trump's remarks at the rally outside the White House on Tuesday.

Trump's team will then present their defense of the former president. They are also expected to receive up to 16 hours over two days.

-ABC News' Trish Turner