(CNN) - After months of negative, hard-hitting ads aimed at Tea Party-backed opponent and former Arizona Rep. J.D. Hayworth, Sen. John McCain's campaign has released a new, more positive spot called 'Vital.'
The minute-long ad makes no mention of Hayworth, but focuses instead on McCain's character and major issues such as border security and the economy.
"I can't think of a time in my life when we had bigger more vital issues at stake than today." McCain says, "The rebuilding of our economy, the security of our nation, our border, and the safety of every citizen in Arizona."
"We will get America back on course, we will return Arizona to safety and prosperity," McCain also says in the commercial.
The ad was released hours after Hayworth attended a Tea Party rally at the U.S./Mexico border, in support of tougher immigration laws.
Speaking at the rally, Hayworth attacked McCain's record on immigration. "It is time to 'regularize' the status of John McCain," said Hayworth. "Send him back here to be a citizen among us."
The Arizona Republican Senate primary is scheduled for August 24th. Recent polling suggests McCain is leading by a wide margin.