The last surviving Republicans battered each other and invoked Reagan — without evoking him — last night in Simi Valley. Now it's Clinton and Obama's turn to whack away at the Kodak Theatre. The debate airs at 5 pm on CNN (live-streamed on CNN.com and LATimes.com) and is sponsored by that network, Politico and the Los Angeles Times. Wolf Blitzer of CNN, Doyle McManus of the LAT Washington bureau and Jeanne Cummings of Politico ask the questions, and there are no time limits on answers. I should be posting from inside Hollywood and Highland by mid-afternoon. Sampling of media coverage, updated from time to time through the day:

Republicans
Accusations fly at Republican debate LAT
Romney and McCain tangle NYT
Romney falls into McCain trap on Iraq Politico
Schwarzenegger and Giuliani endorse McCain LAT
Debate transcript CNN
Traveling press slept last night at the Beverly Hilton Top of the Ticket

Democrats
One of the most electric presidential debates in history? Mike Allen at Politico
Edwards out, no endorsement yet LAT
Obama's gay gold mine Wilshire & Washington
Rasmussen sees Clinton lead in CA just 3 points Rasmussen Reports
MoveOn weighing an endorsement The Nation
Rallies outside the Kodak Blogging.la

Also:
Sprawling, diverse state poses special challenge for candidates Jennifer Steinhauer in NYT
Races now 'one son short of a mill worker' The Note
Both the LA Weekly and CityBeat have their Feb. 5 primary issues out today.

Previously at LA Observed:
Who sits where at Hollywood debate
Obama o-rama
Kareem vs. Magic on Obama
More LA Observed politics