Merrick Garland, Biden's pick for attorney general, could face tricky political questions during his confirmation hearing before the Senate Judiciary Committee today. In the wake of the Jan. 6 attack on the Capitol, Garland and Democrats are expected to point to Garland's work prosecuting the Oklahoma City bombing as evidence of his ability to investigate and prosecute domestic terrorism.

"If confirmed, I will supervise the prosecution of white supremacists and others who stormed the Capitol on January 6 – a heinous attack that sought to disrupt a cornerstone of our democracy: the peaceful transfer of power to a newly elected government,” Garland will say.

Garland's opening statement also conveys a commitment to equity, saying that upholding the Civil Rights Act remains "urgent" for the Department of Justice. Garland has received ample bipartisan support, ahead of his confirmation hearings before Senate Judiciary Monday and Tuesday, 61 former federal judges and a bipartisan group of more than 150 former Justice Department officials have penned letters in support of Garland's confirmation.

-ABC News' Alexander Mallin and Benjamin Siegel

Garland became emotional when discussing his motivations for confronting hatred answering a question from Sen. Cory Booker, D-N.J., choking up when discussing his grandparents who fled from religious persecution.

"So, you know, I come from a family where my grandparents fled anti-Semitism and persecution. The country took us in, and protected us, and I feel an obligation to the country to pay back and this is the highest, best use of my own set of skills to pay back. And so, I want very much to be the kind of attorney general that you're saying I could become," Garland said. "And I'll do my best to try to be that kind of attorney general."