MINNESOTA (WKOW)--The final four candidates in the Republican presidential race are competing in three states this week.
Colorado, Minnesota and Missouri hold their GOP caucuses or primaries on Tuesday.
Meanwhile, Mitt Romney has added to his lead in the race for delegates now that Republican officials in Nevada are done counting the votes from Saturday's presidential caucuses.
Romney won the GOP caucuses with 50 percent of the vote, giving him 14 delegates. Newt Gingrich won six delegates, Ron Paul won five and Rick Santorum got three.
Nevada awarded its 28 delegates in proportion to the statewide vote.
Romney has a total of 101 delegates to the party's national convention, including endorsements from Republican National Committee members who will automatically attend the convention and can support any candidate they choose.
Gingrich has a total of 32, Santorum has 17 and Paul has nine. It will take 1,144 delegates to win the Republican nomination for president.