WASHINGTON (AP) - There's nothing like a few victories to boost a candidate's fundraising -- and Rick Santorum says he's collected $400,000 in the past couple of days, including $250,000 since his wins yesterday in three states.

But one prominent Mitt Romney supporter, Sen. John McCain of Arizona, says he's still confident Romney will win the nomination.

Despite yesterday's losses, Romney remains the front-runner in delegates.

Winning yesterday's Republican presidential caucuses in Colorado and Minnesota has propelled Santorum into second place in the race for delegates.

An Associated Press analysis finds Santorum picking up at least 52 delegates, including all 37 at stake in Minnesota.

Mitt Romney got at least six, while Newt Gingrich and Ron Paul were shut out.

Overall, Romney has 107 delegates, including endorsements from members of the Republican National Committee, who can support any candidate they choose.

Santorum is next with 69 delegates, followed by Gingrich with 32 and Paul with nine.