Republican John McCain spent nearly $2.5 million during a two-month period ending on Sept. 30 in his bid to win a fifth term in the U.S. Senate.

A new poll shows that Republican John McCain holds a strong lead over Democrat Rodney Glassman in Arizona's U.S. Senate race.

Sen. John McCain routed conservative challenger J.D. Hayworth Aug. 24 in the Republican primary in what could be the final campaign for the former GOP presidential nominee.

Arizona Capitol Times Managing Editor Matt Bunk talks about Sen. John McCain's steady climb in the polls against primary contender J.D. Hayworth and how Arizona's primary election has shaped up in the final days leading up to it on NPR's Morning Edition.

The cast of "Survivor" has nothing on Sen. John McCain. Once labeled a vulnerable incumbent, the four-term Arizona Republican is the clear front-runner against challenger J.D. Hayworth after spending some $20 million and casting his GOP opponent as a late-night infomercial huckster in a series of devastating ads. The primary is Tuesday.

As John McCain and J.D. Hayworth have dominated Arizona's political headlines, four Democrats are quietly wrangling for the chance to take on the winner.

Arizona Sen. John McCain and Rep. Jeff Flake are holding a town hall meeting in Gilbert on Thursday.

John McCain's Republican primary challenger suggests the country would be worse off had McCain won the 2008 presidential election.

Sen. John McCain's new television ad casts his primary challenger as someone who did favors for disgraced lobbyist Jack Abramoff.

Sen. John McCain's Republican primary challenger has released a new ad using McCain's own voice admitting to lying in the past.