NPR has this piece, for those catching up after the holiday. A common theme: “Multiple witnesses during these hearings have described a president who couldn’t accept the truth, would find people to tell him what he wanted to hear, had descended down a deep rabbit hole of conspiracy and was willing to do whatever it took in a desperate effort to cling to power that was slipping through his fingers.” Bloomberg has a similar summary here, noting: “A slew of testimony shows that even after top-level administration and campaign aides had accepted and directly told Trump that he’d lost the election, he persisted with public claims it had been stolen or rigged.”