In pre-taped remarks, Biden's new Secretary of State Antony Blinken delivered his first address to the U.N. Human Rights Council since the U.S. moved to rejoin as an observer. Blinken said the U.S. will seek full-time membership for the 2022 term.

In his remarks, Blinken called for reform of the council, including members with anti-Israel bias and members that "undermine" human rights. He even called out a few countries by name, including Russia, Iran, Venezuela and China -- all members. Blinken also noted America’s imperfect human rights record, citing discrimination and violence toward Black, indigenous and Asian Americans.

"I recognize that any pledge to fight for human rights around the world must begin with a pledge to fight for human rights at home," Blinken said. "People of color in the United States deal every day with the consequences of systemic racism and economic injustice."

-ABC News' Conor Finnegan and Chad Murray

The president will hold a bipartisan meeting to discuss U.S. supply chains with House and Senate members in the Oval Office on Wednesday afternoon. Biden will later sign an executive order on the economy with Harris in attendance.

The order is expected to mandate a 100-day review of critical product supply chains in the U.S. focused on those for computer chips, large capacity batteries, active pharmaceutical ingredients and critical minerals and strategic materials, including rare earth minerals. The order is part of the administration's effort to secure domestic supply chains in the wake of the COVID-19 pandemic that highlighted vulnerabilities that currently exist.

-ABC News' Molly Nagle

The first of what will be many congressional hearings on the Capitol siege revealed how much is still not known about what happened Jan. 6 -- even after an impeachment trial, evidence unearthed in scores of prosecutions and countless hours of videos of the attack itself. Perhaps the most obvious blind spot is what former President Donald Trump knew and what he did about it in real-time.

Tuesday's hearing raised a series of questions that directly involve the previous administration. Current and former law-enforcement officials aren't sure why FBI intelligence didn't make its way to the Capitol Police or why National Guard and Pentagon resources weren't faster to arrive when it became clear how awful the situation was.

Judge Merrick Garland plans to make Jan. 6 investigations his first priority after he becomes attorney general. And even with additional hearings Wednesday, Thursday and beyond, the concept of a bipartisan commission to investigate the events leading up to and during the siege is gaining traction on Capitol Hill.
Many of the most consequential questions rest with Trump -- assuming he is put in a position of having to answer them.

-ABC News Political Director Rick Klein

Biden's pick for director of the Office of Management and Budget, Neera Tanden, was supposed to testify before the Senate Budget Committee Wednesday morning, however the committee postponed Tanden's confirmation hearing, according to two sources with knowledge of the matter.

In addition, a vote on the nomination in the Senate Homeland Security Committee has also been postponed, a spokesperson told ABC News that the delay was because, "members need more time to consider the nominee."

Moments after news broke that two Senate committees postponed their votes on Tanden's nomination, White House press secretary Jen Psaki defended Tanden in a Twitter thread, making clear the White House is standing by their nominee.

"Neera Tanden is a leading policy expert who brings critical qualifications to the table during this time of unprecedented crisis. She also has important perspective and values, understanding firsthand the powerful difference policy can make in the lives of those going through hard times," Psaki tweeted.

The nomination has been in trouble since lawmakers became critical of Tanden’s combative tweets aimed at Republicans and her effort to delete them before her nomination. Her nomination was in danger of being derailed when moderate Democratic Sen. Joe Manchin, D-W.Va., announced his opposition to her nomination, citing her temperament.

-ABC News' Trish Turner, Molly Nagle, Katherine Faulders and Sarah Kolinovsky

Rep. Trent Kelly, R-Miss., took to the House floor on Tuesday to speak in favor of his bill to name a Tupelo post office after U.S. Air Force Col. Carlyle “Smitty” Harris, a Vietnam prisoner of war who was held in the infamous "Hanoi Hilton."

The uncontroversial measure was slated to pass under the suspension of the House rules -- with debate expedited because it had the support of two-thirds of the chamber.

But in a surprise move, Rep. Sean Casten, D-Ill., blocked the measure, and instead forced the House to take a recorded vote on the bill Tuesday evening.

The reason? Kelly voted to overturn the election results on Jan. 6.

"As Representatives working every day on behalf of the American people, Rep. Casten believes that working with members regardless of political party is at the core of good public policy," Casten's chief of staff Cara Pavlock said in an email obtained by ABC News. "As a general matter, he does not suggest this action against members with whom we merely disagree, but that willingness to collaborate can only extend so far and to those that also hold the core value of upholding democracy."

"The vote to overturn the election results in the midst of a violent insurrection was a bridge too far," Pavlock wrote, adding that Casten also planned to vote against the post office renaming for that reason.

The bill did pass on a vote of 406-15.

The minor procedural dustup is one of many reminders of how Congress is still grappling with the aftermath of the Jan. 6 Capitol riot and that lawmakers are still coming to terms with how to approach colleagues who supported and amplified former President Donald Trump's efforts to undermine the results of the 2020 election.

-ABC News' Benjamin Siegel