J.D. Hayworth incorporated a quote about "lying" from John McCain's reading of his book, Worth The Fighting For: A Memoir, into a new TV ad hitting the Arizona senator on immigration.

"It could come down to lying or losing, I chose lying," McCain said in reference to the 2000 GOP presidential primary in South Carolina. During the race, McCain followed the advice of his campaign consultants and did not state a position against the Confederate flag. He said later he regretted not speaking out about its symbolic significance.

Hayworth's ad accuses McCain of "lying" about his support for the "amnesty bill."

It's the second contrast ad the Hayworth camp has released this cycle, but it may be too little too late. Early voting in Arizona started on July 29. The primary vote is Aug. 24. 

The McCain campaign noted the ad had "already been labeled false by the respected non-partisan fact-checkers at FactCheck.org."

"With his latest TV ad, Congressman Hayworth shows all of Arizona how much he enjoys rolling around in the mud and muck of blatantly false character attacks," McCain spokesman Brian Rogers said in a statement. "Even Congressman Hayworth's fellow infomercial pitchmen would be disappointed with his utter disregard for the truth."

--Updated at 5:08 p.m. on Aug. 7