Amy Kremer, chairwoman of the Tea Party Express, is leaving her post so she can focus on the campaign for Senate Minority Leader Mitch McConnell's GOP primary challenger.
"This has been a really difficult decision for me, but the time has come for me to leave the Tea Party Express," Kremer said in a statement she released on her Facebook page
"I've wanted to move in a different direction for a while, but also wanted to make sure that any change I make was also a positive change for the conservative movement," she wrote. "So as we move into this election cycle, I think the time is right."
The Tea Party Express is one of the most active tea party groups. It formed in 2009 as a bus tour that went around the country and held rallies in support of conservative politicians, according to CNN.
Kremer said that she is proud of the accomplishments of the Tea Party Express during her tenure with the group.
"I am proud of the historic work we accomplished — like partnering with CNN to host the first ever Tea Party Presidential Debate and electing conservatives such as Senators Mike Lee and Ted Cruz to Congress," she wrote.
Kremer told CNN that she plans to focus on upcoming Senate races and will work as a consultant for Matt Bevin, McConnell's primary challenger in Kentucky.
"This should be ground zero for the movement," Kremer said from Kentucky. "A U.S. senator definitely has more of an impact on our debt than a congressman that potentially will spend eight months in Washington, and my heart tells me that I should be on the ground focused on competitive Senate races."
Kremer likened Bevin to other Senate conservatives such as Cruz, Lee and Rand Paul.
"They're having daggers put in their back, not by the Democrats but by members of their own caucus," she added. "That effort is being led by Mitch McConnell and the only way to stop that is to defeat Mitch McConnell."
Kremer's said that her resignation is effective immediately.
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