Just before the start of the Labor Day holiday weekend, the reelection campaign for Mitch McConnell of Kentucky announced its campaign manager, Jesse Benton, was resigning. Benton was leaving the campaign, Politico reports, “citing potential distractions over renewed attention to a scandal from the Iowa 2012 caucuses.”

Benton had served as chairman for Ron Paul’s 2012 presidential campaign (he’s also married to Paul’s granddaughter). The Paul campaign has been accused of paying for the endorsement of at least one Iowa state senator. The former senator, Kent Sorenson, pled guilty last week to switching his endorsement from Michele Bachmann to Ron Paul in 2011—shortly before the Iowa caucuses—in exchange for more than $70,000 from the Paul campaign. Sorenson also said he was paid by the Bachmann campaign.