Many in the media have decamped to sunny California, and for good reason: The state not only provides the biggest targets to campaigns on both sides looking to score their share of the hundreds of delegates available tomorrow, it also allows reporters to stay up late as results roll in. Going to bed at 1 a.m. after the rest of the country has reported is a lot easier than going to bed at 4 a.m.

For at least one candidate, though, California will not be the story. John McCain, once an afterthought, then the front-runner, is seeing his poll numbers in the Golden State sink again. After enjoying leads as high as 19 points, just days after his New Hampshire win, and 13 points, in a CNN/Politico/LA Times poll last week, McCain now owns just a 2-point lead in the latest RCP California Average.

The news may be worse than that. A tracking poll for C-SPAN and Reuters, taken by Zogby, shows distinct movement toward McCain's chief opponent in California, Mitt Romney. After taking the lead yesterday, Romney is now up by eight points. A victory by such a small margin would only give Romney a few extra delegates -- the state allocates most of their Republican delegates in a winner-take-all by Congressional District fashion.

In anticipation of such a result, McCain's team has started downplaying expectations and California's relative importance. "We're going to do very well in the winner-take-all states in the Northeast," spokesman Brian Rogers told Politics Nation today. "California is a toss-up that, at the end of the day, won't be the big story [as long as] we pick up some delegates."

Rogers promoted the importance of states like New York and New Jersey, which award delegates to the statewide winner and in which McCain is far ahead. In fact, if Romney wins a majority in each of California's districts, he would win 170 convention delegates, twelve short of what McCain would win from victories in those two states and his home state of Arizona.

Even if a win in California left Romney at a disadvantage in the rest of the country, it would be a huge boost for a candidate who has looked, if not resigned to his fate, at least on the ropes and badly in need of a victory. A Golden State win could prove to the former Massachusetts governor that a one-on-one race against McCain really could turn to Romney's advantage, and in the end, that could make for a renewed interest in a long-term crusade against the Arizona maverick.