A group of Republican House members have an interesting argument. Chip Roy (TX), Mike Gallagher (WI), Kelly Armstrong (ND), Ken Buck (CO), Thomas Massie (KY), Tom McClintock (CA), and Nancy Mace (SC) put out a press release explaining why they won't object to the certification of the vote on the 6th. Basically, even if there was a lot of voter fraud, it's up to the states and the courts to figure out. The Congress's role is only to decide between different slates of electors. But every state has only sent a Biden slate or a Trump slate, so there's nothing to decide. Their constitutional responsibility is to defer to the states and count the votes.
https://gallagher.house.gov/media/press-releases/gallagher-colleagues-release-statement-concerning-january-6-vote
