In this instance Yarmuth is referring to an op-ed McConnell wrote in the Louisville Courier-Journal. In his letter, Yarmuth calls into question five claims McConnell made in the op-ed. And he wants McConnell to address his concerns.
McConnell's spokesman declined to comment.
"His constituents are my constituents. It irks me when he's misleading them," Yarmuth said. "There are about 15,000 small businesses that could be eligible for a tax credit in my district. Only 530 or so have taken advantage of it. And I know that' s because they're convinced it's terrible for small businesses. And that's not accurate."
Yarmuth has never taken such a public tack against McConnell. But unlike Yarmuth, McConnell's not up for reelection this year, and this is a blunter-than-usual way of pressuring him not to be so partisan.
"He's just become such a total reflexive partisan politician, he's playing a different role, and it's not necessarily being a senator from Kentucky," Yarmuth said. "He's become totally detached from any obligation to be remotely fair and honest."
Read Yarmuth's letter below.