(CNN) - Sen. Michael Bennet of Colorado faces his first test Tuesday in his bid for a full term in office, when state Democrats and Republicans hold precinct caucuses.
Party members are expected to gather to pick their favorite candidates in this year's top races, including senator and governor. While the caucuses are open to all registered party members, they usually attract political insiders and junkies. And while nominations will be decided by the state's August primaries, a strong showing in the caucuses could give some candidates a boost.
Bennet was plucked out of political obscurity last year, when Gov. Bill Ritter named him to replace Sen. Ken Salazar, who stepped down to serve as Interior Secretary in the Obama Administration. To reach November's general election, Bennet first needs to successfully fend off a Democratic primary challenge from former Colorado House Speaker Andrew Romanoff.
Bennet leads Romanoff in the battle for campaign cash, thanks in part to a fundraiser appearance in Colorado last month by President Obama. Romanoff has criticized Bennet for raising out-of-state money.
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