Where to find the candidates: Jan. 31

Today is all about California. Democrats Hillary Clinton and Barack Obama are in Los Angeles for their first two-candidate debate, which will air at 8 p.m. on CNN. A Rasmussen poll has Clinton holding on to a three-point lead in the California primary, thanks to support from women, Latinos, and self-identified moderates.

Republican John McCain is expected to be in California to accept the endorsement of Gov. Arnold Schwarzenegger. Mitt Romney is campaigning in Long Beach, Orange County, and San Diego. In the 2000 Republican primary, McCain ran strongest in the San Francisco area but also did well in San Diego; Los Angeles and Orange County were solidly for George W. Bush, and Romney clearly hopes that some anti-McCain sentiment remains there.