He claims to support the Constitution, but when it is required for him to act, he stabs those who are supporting the Constitution in the back.
Yep, he told Trump, and the American public, that he had investigated the election fraud claims. There was no investigation. He simply decided for himself (or let it be decided for him by his masters) that there was no need to investigate. He is derelict, a liar, and a betrayer.
That is what an establishment ‘conservative’ does.