I don't think it'll hurt Bush this time though.
In part because Keyes is running (who doesn't bash Bush) and Keyes is far better than Buchanan on most the issues. Keyes will divert all the attention that Buchanan may have received. So stop bashing Keyes.
Tell Keyes to stop proposing silliness like repealing the popular election of Senators and a cockamamie, race-pandering reparations plan.