The Hill News

Sen. John McCain (R-Ariz.) welcomed his former presidential competition to his home state on Wednesday.

McCain and former Massachusetts Gov. Mitt Romney were bitter rivals for the Republican nomination in 2008, although Romney ultimately endorsed McCain after he won the Republican nomination.

McCain tweeted: "Welcome to #Arizona today, @MittRomney â€" I hope all candidates spend plenty of time and money in our state!"

Romney, now one of the front-runners for the Republican nomination, is holding a roundtable with members of the business community in Tucson, Ariz., on Wednesday morning, as well as a town-hall meeting at Sun Lakes, Ariz., later in the afternoon.