They could, but they won’t.
There are not enough courageous Republicans.
If they decline that’s a good way to pass the buck wouldn’t you say?
In Wayne, County, Michigan (Detroit), the Republican RINO legislators buckled under threats from the liberal Left to go ahead and call the county for Biden, even though there is a ton of fraud already revealed in the state election process.
Trump's team can't rely of the Republicans not to stab him and the party in the back.
He's going have to win this thing in the courts, i.e. the Supreme Court.