Polling shows that while COVID-19 vaccine hesitancy is declining, it remains a partisan issue, FiveThirtyEight's Nate Silver said on ABC's "This Week."

A Kaiser health tracking poll released late last month showed that 47% of Americans have either already gotten the vaccine or will get it as soon as they can -- up from 34% in December. Still, 13% said they definitely won't get the vaccine and 7% said they'll get it only if required to for work, school or other activities. And 31% said they want to wait and see how it's working.

"It's also a highly partisan issue," Silver said. "While enthusiasm has increased among Democrats and independents, Republicans remain resistant. Thirty-three percent of GOP voters say they won't get the vaccine and will only get it if it's required."

Senate Majority Leader Chuck Schumer's office says the Senate will accommodate and respect a request from Trump's lawyer to pause the upcoming impeachment trial during the Jewish Sabbath.

“We respect their request and of course will accommodate it. Conversations with the relevant parties about the structure of the trial continue," Justin Goodman, a spokesman for Schumer tells ABC News.

It's still unclear how long the trial will last.

As the New York Times first reported, Trump's lawyer David Schoen requested the trial be suspended if it did not wrap up by the beginning of the Sabbath on Friday.

-ABC News' Rachel Scott

White House press secretary Jen Psaki has provided ABC News with a statement following Biden’s remarks Friday night in a pre-recorded interview with "CBS Evening News" Anchor Norah O’Donnell, in which he said he thinks former President Donald Trump should not receive any further intelligence briefings because of his “erratic behavior.”

“The President was expressing his concern about former President Trump receiving access to sensitive intelligence, but he also has deep trust in his own intelligence team to make a determination about how to provide intelligence information if at any point former President Trump requests a briefing,” Psaki said.

-ABC News' Justin Gomez

Biden is receiving another foot scan Saturday in Newark, Delaware, following his injury on Nov. 28, when he sustained small hairline fractures in his mid-foot while playing with his dog Major.

Dr. Kevin O’Connor, physician to the president, said in a statement:

"The President will receive a regularly scheduled 10 week post-injury weight-bearing X-ray at the Delaware Orthopaedic Specialists, where he was evaluated initially. The President’s symptoms have improved as expected, and he is adhering to a strict physical therapy regimen. As we explained initially, sprains of the foot can sometimes be a more significant injury than the bony fractures which accompany them. This x-ray is to check to assure that he has achieved good ligamentous stability."

-ABC News' Justin Gomez