Former Rep. J.D. Hayworth (R-Ariz.) is planning to mount a primary challenge against Sen. John McCain, an Arizona newspaper reported Friday.

Hayworth, who served in the House for 12 years, told the Arizona Daily Star, “Arizonans have a clear choice — a clear, commonsense, consistent conservative, or they can remain with a moderate who calls himself a maverick.”

Hayworth has been hosting a conservative radio talk show, but he resigned that position last week to clear the way for his campaign.