Sen. Chuck Schumer (D-N.Y.)

The event, held near Capitol Hill, asked for donations of $1,000 to $5,000.

Kaine, former chairman of the Democratic National Committee, and his likely Republican opponent, George Allen, a former governor, senator and chairman of the National Republican Senatorial Committee, are both expected to raise money from across the nation.

Based on recent campaigns in Virginia, Kaine and Allen, will probably spend more than $20 million combined on the race. Already, they have raised more than $7 million.

A number of national Republicans have helped Allen raise money, including former New York Mayor Rudy Giuliani, Senate Minority Leader Mitch McConnell and Sens. John Thune (S.C.), Mike Crapo(R-Idaho), Saxby Chambliss (R-Ga.) and Richard Burr (R-N.C.).

Both men have traveled across the country to meet with donors. Allen went to California in September just after Kaine held a pair of fundraising events in Chicago.

We were alerted to Thursday’s event by the National Republican Senatorial Committee, which criticized Kaine for appearing with a “top Senate liberal and avowed partisan.’’

“If Virginians want to know whose interests Tim Kaine will serve if elected to the Senate, they don’t need to look any further than to see who he is standing with in Washington (Thursday) and who he has stood with on every major big government issue of the last several years,” NRSC spokesman Brian Walsh said.

Kaine’s campaign, which released no details about the event, responded.

“It's not surprising that former Senator Allen would look for any opportunity to distract from his big-spend record and his connections to Washington D.C. as a former party chairman, senator and head of a firm that lobbies Congress,’’ Kaine spokeswoman Brandi Hoffine said.