Republican Jim Carlin said he is running against U.S. Sen. Joni Ernst because she has failed to deliver on her famous "make 'em squeal" mantra.

Carlin is a former state senator and the founder of the Iowa Liberty Network.

Carlin previously ran unsuccessfully against Republican U.S. Sen. Chuck Grassley in 2022.

Iowa Republican Jim Carlin is launching a primary campaign against incumbent Republican U.S. Sen. Joni Ernst, saying the two-term senator has failed to deliver on her famous "make 'em squeal" mantra.

“Joni Ernst said she would go to D.C. and make them squeal,” Carlin said in a statement, referring to a viral campaign ad that helped propel Ernst to her first term in 2014 . “After a decade, it’s clear it was a clever campaign commercial, not conviction. Rather than making them sq

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