Former Massachusetts Gov. Mitt Romney (R) made a last-minute appeal for House Republicans' campaign committee, hours before a fundraising deadline. 

Romney, a 2008 Republican presidential candidate who's seen as a probable candidate in 2012, asked supporters to help raise $50,000 for the National Republican Congressional Committee (NRCC).

"I can tell you firsthand that Americans cannot afford another 2 years of a Nancy Pelosi-led Congress," Romney wrote. "In the last 20 months, unemployment has skyrocketed, taxes have soared, and the government takeover of healthcare threatens to crush small businesses."

The appeal is ostensibly a move to help build favor with House Republicans as they look to win back the majority in this fall's elections. Polls show the GOP poised to pick up a number of House seats currently held by Democrats, though it's not clear whether Republicans will win the 39 districts necessary to take back the House. 

A number of Republicans have helped raise money for the NRCC and the party's other committees, including other potential 2012 candidates. Minnesota Gov. Tim Pawlenty (R) sent out a fundraising e-mail similar to Romney's at the end of June on behalf of House Republicans. 

"The NRCC is leading THE ONLY national campaign to STOP the Democrats and create a new Republican majority in the House," Romney wrote Tuesday.