Of all places, Arizona is on the verge of becoming a battleground state. Two new polls out of Arizona show John McCain barely holding onto his home state.

Rasmussen has McCain 51% to 46% over Obama. The Zimmerman poll has it even closer at 44% to 42% for McCain. McCain had been holding a lead greater than 10%. An Arizona State University poll confirms a narrowing race, but shows McCain still with a moderate lead 45% TO 38%.

Even though this sounds like an unimaginable possibility, it is not out of the realm of possibility for McCain to lose his home state. Al Gore lost Tennessee in 2000, and George McGovern lost South Dakota in 1972. Walter Mondale barely held on to defeat Ronald Reagan in Minnesota in 1984.

This is another sign of McCain’s electoral weakness. However, McCain will probably not need to defend his home turf. With few days left in this race, Barack Obama needs to spend his days in states that are clearly tossups – Ohio, Florida and Missouri. Still, the thought that a few Democratic resources sent to the Grand Canyon State could cause it to fall for Obama must be an alluring and intriguing temptation to Democrats.