In an election year where so much feels familiar, Donald Trump's choice for running mate is one of the biggest remaining wild cards. 

Sources familiar with the process confirmed late last week that so far eight people have made the shortlist and are answering questions from the campaign about their qualifications. They are Sens. Marco Rubio (R-Fla.), J.D. Vance (R-Ohio), Tom Cotton (R-Ark.) and Tim Scott (R-S.C.); as well as North Dakota Gov. Doug Burgum; Reps. Elise Stefanik (R-N.Y.) and Byron Donalds (R-Fla.); and Ben Carson, Trump’s former secretary of housing and urban development.

The list includes both familiar and dark-horse candidates. National political reporter Marianne Levine talks with “Post Reports” host Martine Powers and senior political reporter Aaron Blake, who writes The Washington Post's new Campaign Moment newsletter, about the twists and turns in a decision that will ultimately fall to one person: Donald Trump.

Subscribe to Aaron’s newsletter, The Campaign Moment, here. 

Subscribe to The Washington Post here.

Today’s show was produced by Laura Benshoff and Ted Muldoon. It was mixed by Rennie Svirnovskiy. It was edited by Renita Jablonski.