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

Biden's pick for attorney general, Merrick Garland, was questioned by Sen. Mike Lee, R-Utah, about his views on the Second Amendment right to bear arms. Garland cited Supreme Court precedent saying the right to bear arms in his belief is one that is "subject to some limitations," citing former Supreme Court Justice Antonin Scalia. He wouldn't answer directly whether he supports "universal background checks" for all firearms owners but said that he believed it is important for checks to ensure that people like felons or other potentially dangerous individuals are not permitted to buy guns.

Sen. Ted Cruz, R-Texas, used his line of questioning to raise concerns about the Justice Department being "politicized and weaponized" under the Obama Administration and cited former Attorney General Eric Holder's comments that he saw himself as a "wingman" to former President Barack Obama. Asked whether Garland viewed himself as a "wingman" to Biden, Garland said he didn't want to comment on any of his predecessors but said he "could assure you that I do not regard myself as anything other than a lawyer for the people of the United States."

When asked about the federal death penalty, Garland said the death penalty gives him "great pause" because of the racial disparity and number of exonerations that come from death penalty cases.

"I have had a great pause about the death penalty. I am very concerned about the large number of exonerations that have occurred through DNA evidence and otherwise, not only in death penalty convictions, but also in other convictions, I think, a terrible thing occurs when somebody is convicted of a crime that they did not commit," Garland said.

-ABC News' Luke Barr