LOS ANGELES -- The state of California will also play a key role for the Democratic presidential candidates.

Senators Hillary Clinton and Barack Obama are squaring off in a Tinseltown debate tonight.  Stay tuned to CBNNews.com for coverage on the debate beginning at 8 p.m. EST.

Obama comes in on a roll after his decisive win in South Carolina's primary. His campaign says he's raised a whopping $32 million in January.

Those funds will allow him to pay for expensive TV commercials in many of the 23 states hosting next week's Democratic primaries and caucuses.

So far, the Clinton camp has not reported its financial numbers.

With John Edwards dropping out, tonight's Obama - Clinton debate will mark the first time the two will go head-to-head since the campaign season began.