(CNN) - A little more than two months before Election Day, Sen. Mitch McConnell's campaign manager, Jesse Benton, stepped down Friday, resigning amid a long-brewing controversy involving Benton's ties to Ron Paul's presidential bid in 2012.
"With a heavy heart, I offered Sen. McConnell my resignation this afternoon and he reluctantly accepted," Benton said in a statement issued by McConnell's campaign. "Effective Saturday, August 30th, I will no longer be the 'Team Mitch' campaign manager."
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Benton was chairman of Ron Paul's 2012 presidential campaign. This week a former Iowa state senator, Kent Sorenson, pleaded guilty in federal court to accepting payment from Paul's campaign in exchange for supporting the former Texas congressman ahead of the Iowa GOP presidential caucuses in January 2012.
It's unknown whether Benton was aware of those payments, but according to the Washington Post there have been media reports indicating Benton was involved in the courting of Sorenson.
Sorenson had previously been a supporter of rival Rep. Michele Bachmann's campaign - from whom he also accepted money, he admitted - and his departure was considered a controversial move at the time.
Benton did not elaborate on the issue or mention Sorenson by name in his statement, only saying, "there have been inaccurate press accounts and unsubstantiated media rumors about me and my role in past campaigns that are politically motivated, unfair and, most importantly, untrue."
"However, what is most troubling to me is that they risk unfairly undermining and becoming a distraction to this reelection campaign," he added, referring to McConnell's campaign.
The Senate Republican leader is in a tight race against Democratic nominee Alison Lundergan Grimes in Kentucky.
Ron Paul's son, Sen. Rand Paul, is currently laying the groundwork for a presidential bid of his own. Benton served as Rand Paul's campaign manager in his 2010 Senate campaign in Kentucky.
Last year Benton made headlines after a secretly recorded phone call was made public, in which Benton had expressed half-hearted support for McConnell, his boss, and eagerness to move on to Rand Paul's team in 2016.
In his statement Friday, Benton said working for McConnell has been "one of the great honors" of his life and described him as a "friend."
A spokesman for Rand Paul had no comment on the recent news involving Sorenson and Benton.
Benton's full statement:
There is no more important cause for both Kentucky, my new home I have come to love, and our country than electing Mitch McConnell Majority Leader of the United States Senate. I believe this deep in my bones, and I would never allow anything or anyone to get in the way.
That includes myself.
Recently, there have been inaccurate press accounts and unsubstantiated media rumors about me and my role in past campaigns that are politically motivated, unfair and, most importantly, untrue. I hope those who know me recognize that I strive to be a man of integrity.
The press accounts and rumors are particularly hurtful because they are false.
However, what is most troubling to me is that they risk unfairly undermining and becoming a distraction to this reelection campaign.
Working for Mitch McConnell is one of the great honors of my life. He is a friend, a mentor and a great man this commonwealth desperately needs. I cannot, and will not, allow any possibility that my circumstances will effect the voters’ ability to hear his message and assess his record. This election is far too important and the stakes way too high.
With a heavy heart, I offered Sen. McConnell my resignation this afternoon and he reluctantly accepted. Effective Saturday, August 30th, I will no longer be the “Team Mitch” campaign manager.
The good news is that most of my work has been done. We have built a top flight team of incredible people that are working tirelessly to ensure Mitch's re-election. They are a finely oiled machine and will not skip a beat without me.
This decision breaks my heart, but I know it is the right thing for Mitch, for Kentucky and for the country.
"I have told you these things, so that in me you may have peace. In this world you will have trouble. But take heart! I have overcome the world."