What bullshit. The Republicans didn't back off anything. The lost every election challenge they made because there was no evidence of anything they claimed. The lawyers who filed these suits are now being disbarred for bring fake laws suits for "false purposes", and lying to the courts.
The drug addict was arrested in California with thousands of piece of mail, a couple of hundred of which were recall ballots. This is what passed for "evidence" of massive voter fraud to a Republican. The guy was looking for cash, credit cards, and ID's he could sell for meth.
But in typical Republican fashion, you're trying to exploit an unrelated crime and turn it into evidence of massive voter fraud. Lies are all you have, and the fools who believe them.