A super PAC supporting Ted Cruz's presidential campaign unveiled new radio spots to its $1 million radio ad campaign. Keep the Promise I's ads showcase the Texas senator's disagreement with his fellow Republicans and his conflict with former House Speaker John Boehner.

"The media and even some of his own party, like Speaker John Boehner attacked Ted Cruz; referring to him as a pain in the "you know what" because of his bold actions fighting to keep the promises he made to me," a narrator can be heard saying. "That was the Ted Cruz I trust."

The PAC estimates 28 million unique listeners will hear its advertisements every two weeks through the end of the calendar year. The ads will run during several conservative radio programs, including during shows hosted by Rush Limbaugh, Sean Hannity, Mark Levin, and Laura Ingraham.

Cruz ranks third in the Washington Examiner's newest GOP presidential power rankings.

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