One of the proven big-money generators in the House Democratic Caucus has picked the colleagues he thinks could use an extra boost.

Rep. Jared Polis (Colo.) has set up a joint committee with seven incumbents, three challengers and two Democrats running in open-seat races.

Last spring, Polis, who is running for a second term in Congress, organized a large joint fundraising committee that distributed more than $400,000 to the Democratic Congressional Campaign Committee and selected Democratic candidates.

The new committee, called Jared Polis Majority Fund, will share what it raises with the DCCC, Polis’ re-election committee and the campaign committees for these Democrats: Rep. Frank Kratovil (Md.); Rep. Betsy Markey (Colo.); Rep. Scott Murphy (N.Y.); Rep. Bill Owens (N.Y.); Rep. Tom Perriello (Va.); Rep. Harry Teague (N.M.); Rep. Dina Titus (Nev.).; Suzan DelBene, a former Microsoft executive taking on Rep. Dave Reichert (R-Wash.); Steve Pougnet, the mayor of Palm Springs and the challenger to Rep. Mary Bono Mack (R-Calif.); Ami Bera, a doctor who is challenging Rep. Dan Lungren (R-Calif.); former Delaware Lt. Gov. John Carney, who is running in an open at-large seat; and Providence, R.I., Mayor David Cicilline, who is running for the seat being vacated by Rep. Patrick Kennedy (D).

The committee will divvy up funds equally among the participating members and committees, spokeswoman Lara Cottingham said.