Rand Paul, the son of Rep. Ron Paul (R-Texas), has surprised a lot of people by surging in polls and fundraising to quasi-frontrunner status in next year’s U.S. Senate race in Kentucky. But Chris Cillizza reports that Senate Minority Leader Mitch McConnell (R-Ky.) is weighing in against Paul and hosting a fundraiser for Trey Grayson, the young secretary of state, whose “establishment” candidate credentials have been a little banged up by Paul’s campaign.