Kentucky senator Rand Paul thinks the credibility of Matt Bevin, a tea-party candidate challenging Senator Mitch McConnell, has been damaged by the controversy over his past endorsement of the 2008 Wall Street bailouts.

“Paul told reporters Monday that a lack of consistency can be harmful and said that applies to Bevin,” the AP reports.

McConnell’s support for the 2008 bailouts has been one of Bevin’s main lines of attack against the generally conservative Senate minority leader.