FILE - Then-Vice President Joe Biden, left, joins his former Senate colleagues, Sen. John Cornyn, R-Texas, center, and Sen. Orrin Hatch, R-Utah, as they walk on Capitol Hill in Washington, Wednesday, June 8, 2016. Cornyn, a four-term Republican senator, was tapped to lead gun policy negotiations with Senate Democrats in the wake of the mass shootings at a school in Uvalde, Texas, and a grocery store in Buffalo, NY. (AP Photo/J. Scott Applewhite, File)