While the GOP continues to stall on comprehensive immigration reform, a few Republican congressmen are making it clear to constituents that their views are not aligned with the majority of their Republican colleagues. 

Republican Reps. David Valadao and Jeff Denham, who are up for re-election in California's predominantly agricultural region, are making it clear that they support immigration reform, Fox News Latino reports. 

The U.S. Chamber of Commerce spent $300,000 on TV ads in Valado's 21st congressional district, highlighting the fact that he's a child of immigrants. Denham, who represents the 10th district, is noting that he received an award from the country's largest Latino rights group for "putting sound immigration policy over party politics." Denham was the first Republican co-sponsor of the comprehensive immigration bill that is languishing in the House. 

"People have seen I've shown real leadership in driving this issue forward," Denham said.

Other Republican candidates are also ensuring that they voice support for immigration reform in districts that have large Latino populations. Latino voters make up one-third of the electorate in outgoing Republican Rep. Gary Miller's district, for example. 

Republicans in such districts are stressing that immigration reform is necessary to help Latino farmers and businesses keep families together. However, the Republican representatives belong to the party that has stopped immigration reform from coming to a vote in the House. 

A majority of Hispanics believe it's important that immigration reform is passed this year. A California Field Poll conducted last year found that 9 in 10 California voters support allowing undocumented immigrants to stay in the United States if they work and pay back taxes. 

Democrats are targeting the Republicans in southern California, saying Valado and Denham did not sign a petition that would have forced House Speaker John Boehner to bring the Senate's immigration bill to a vote. 

"They pay lip service to comprehensive immigration reform, but they refuse to lift a pen to sign the discharge petition to force a vote," said Rep. Steve Israel, chairman of the Democratic Congressional Campaign Committee.

Other opponents of Valadao said he opposed the California Dream Act in 2011, which allows California immigrants to get privately-funded scholarships to attend public universities in the state, as well as apply for state financial aid. 

However, Valadao spokeswoman Anna Vetter said he voted against it because he believes immigration is a federal issue. 

Denham said he plans to introduce an amendment next week that would allow people to join the armed forces as a way to become permanent, legal residents. 

"There are those of us who have to do a greater job of championing and being vocal on the issue," Denham said. "My concern is that there is a very vocal minority in our conference that likes to say crazy and outlandish things that get picked up by the media."

Israel argued that California Republicans are not effective if they cannot get their Republican colleagues to join them in their support for immigration reform. Denham and Valadao countered his claim, saying Democrats could not get a reform bill to pass when Democrats controlled both chambers in 2008 and 2009.