RUBENSTEIN: Now in his recent book on, uh, Lincoln, uh, Jon Meacham suggests that maybe Abraham Lincoln's father, Tom, was not actually his biological father. INSKEEP: I've heard that and ...

Already the subject of much public scrutiny, President-elect Trump's pick to lead the U.S. military, Pete Hegseth, appears on Capitol Hill today for the opening of Senate confirmation hearings.

President-elect Trump's first stint in the White House included policies and positions that broke with tradition, like threatening to pull out of NATO. What can we expect in his second term?

NPR's Steve Inskeep speaks with outgoing Homeland Security Secretary Alejandro Mayorkas, who says the border is more secure now than in 2019.

TikTok is still running thanks to an order by President Trump. It was banned in a law passed and upheld with rare speed by all branches of government. So what's his authority under the law to do that?

Tom, good morning. TOM BOWMAN, BYLINE: Good morning, Steve. INSKEEP: What are the questions about Hegseth? BOWMAN: Well, first of all, there are questions about his personal behavior. A woman ...

INSKEEP: Yeah. FADEL: ...And undocumented - do they get swept up? Will American-born kids be separated from their families or deported with the undocumented parents, as Trump's border czar ...

INSKEEP: The president-elect has talked about a mass deportation. As someone who knows the law, as someone who knows the systems, what is practical? MAYORKAS: Well, I believe Tom Homan has spoken ...

Inskeep: Let's start at the border ... Mayorkas: Well, I believe the border czar Tom Homan, with whom I have worked in the past in the Department of Homeland Security, has spoken of prioritizing ...

Inskeep: Some people will just not believe that ... Mayorkas: Well, I believe the border czar Tom Homan, with whom I have worked in the past in the Department of Homeland Security, has spoken ...