'There's a lot of smoke here': What Liz Cheney's new book could mean for Trump’s Jan. 6 probe

Tim Heaphy, former lead investigator for the Jan. 6 Committee, speaks to Alex Witt about the significance of new revelations in former Rep. Liz Cheney’s book about her GOP colleagues’ response to Trump’s actions leading up to January 6 and whether any of it can be used against Trump in his upcoming criminal trials.