WASHINGTON — Members of the House select committee investigating the Jan. 6, 2021, attack on the Capitol are discussing the next steps in their investigation, including whether to seek an interview with former Vice President Mike Pence and potentially ex-President Donald Trump, according to one of the Republican members of the panel.

Rep. Adam Kinzinger, R-Ill., the panel member who will be leading some of the questioning at next Thursday’s prime-time hearing, said in an interview ahead of a meeting Thursday that the panel…