Put together a sound legal strategy and strong legal team to handle legal challenges over canceling elections and invalidating results. Secondly, get security for candidates because any candidate who is an electoral threat to a Republican candidate will be at risk of being harmed.
None of that is going to happen. Trump isn’t going to fight tooth and nail to overturn an election that he isn’t a candidate in.
Some said he would not refuse to leave office in if he lost in 2020 but we see how that turned out. With that said he's not going to want a Democratic Congress because he wants the ability to do whatever he wants. Plus there are plenty of other Republicans who would want to tamper with elections so they don't really need his support to do attempt cancellations of and overturning of elections.
Republicans don’t have the power to cancel and overturn elections because they are run by the states, not the federal government. The only places they would be able to get away with it are in safe R states where they don’t need to rig elections in order to win.
And what happens if they still hold control in states like Georgia?
Make no mistake, Trump will try to centralise control around him and will likely succeed because of a court system stacked with sycophants.
Georgia is mostly controlled by the likes of Kemp and Raffensperger who are establishment GOPers who aren’t going to bend to Trump’s will.
Trump’s own judges consistently ruled against him in his many 2020 lawsuits. People like Cannon are the exception rather than the rule. I think we’ll se a lot of his own judges rule against him a lot more frequently than you think.