The poster boy is of course is George Santos, the newly elected congressman from New York who lied about everything to win office. Even his fellow Republicans are squirming to have him in their midst but they need to keep him around for his vote.
But then there's Jim Jordan who was appointed the head a new committee to investigate the "weaponization of the federal government". He along with 4 others, including the new speaker, Kevin McCarthy, ignored subpoenas issued by the January 6th committee.
So, good luck getting people to testify on your new committee, Jim. What goes around, comes around.