Mitt Romney won the Republican caucuses in Washington state, according to unofficial results early Sunday, giving the former Massachusetts governor a shot in the arm heading into Super Tuesday contests. With 99% of the vote in, Romney had 38%. Texas Rep. Ron Paul had 25% and former Pennsylvania Sen. Rick Santorum had 24%. They were trailed by former House Speaker Newt Gingrich at 10%. At stake in the contest are 40 delegates, CNN reported.