Not only that, but Republicans need to stand up and shout in one loud voice that there was massive cheating in 2020, Trump won in a landslide, promise to investigate thoroughly and prosecute every single person involved, and that it will never happen again.
Top priority should be given to state legislatures passing laws prohibiting ballots being mailed out en-masse to voters without them requesting one and going through the verification steps.
A close second is eliminating Dominion machines. Red states who use Dominion should be having audits even if republicans won. If a red state like TN with a super majority of Republicans in the legislature would order an audit of the 2020 results, it could happen very quickly. I'm betting it would reveal the Dominion cheat algorithm and show that the Republicans who won actually won by much larger margins.
If we don't eliminate cheat-by-mail-in ballots and Dominion, then the Democrats will just continue to steal elections.