Immigration reform continues to be a contentious topic ahead of next year's presidential elections, and while Sen. Lindsey Graham (R-S.C.) attempts to reform his party's stance on the issue, Sen. Bernie Sanders (I-Vt.) is facing backlash from one of his party's key demographics.

Sen. Graham has been a staunch supporter of immigration reform within the Republican Party's ranks. While he condemns the president's recent executive orders to patch the system, he argues his party should embrace comprehensive reform rather than to support policies that will alienate the Latino community.

On Sunday, the South Carolina senator went on CBS's "Face the Nation" and said his party needs to rethink how it addresses immigration reform or it will lose the upcoming elections.

Host John Dickerson asked him about attending an event the Romney's hosted over the weekend and how they disavowed the idea of "self-deportation."

"Mitt Romney and Ann Romney did our party a great service by admitting that embracing self-deportation in 2012 was their biggest mistake," Sen. Graham said, adding that he will not be the Republican nominee to self-deport 11 million people.

"If you pass a criminal background check, I will allow to you stay here legally and earn your way to citizenship. It will be hard-earned pathway," he added and cautioned the other GOP candidates to abide by Romney's warning.

"I hope self-deportation is in our rear-view mirror as a party, because if it is not, we will lose in 2016," he explained.

Republican candidates have continuously said they do not want a path to citizenship, which Latino voters are in favor.

However, Sen. Sanders, an independent running with the Democrats, has also faced backlash from Latinos because he has not made his support for immigration reform explicit in his speeches.

According to Bloomberg Politics, Sen. Sanders was confronted during a stop in Marshalltown, Iowa. A college student asked the senator why he did not cover immigration reform and other Latino issues when he visited a town that is almost a quarter Latino.

"Why would you come to Marshalltown and not talk about immigration reform?" said Isaac Medina, a 19-year-old student, after he confronted the senator. "I don't see anything that would detract from his policies, or I don't see any drawbacks, especially in Marshalltown. What I would ask of Senator Sanders is that he ... enlightens us more on his position."

He had asked him about dodging questions about immigration at a previous event, which Sen. Sanders rejected, attributing it to not being able to answer all questions after an event.

However, the pressure from Latinos and other Democrats is beginning to show. Politico reported that Sen. Sanders added a section on immigration reform to a speech he gave on Friday in Des Moines.

"We need a rational immigration process, not the Republican alternatives of self deportation or some other draconian non-solution," he said. "We need a plan which provides a path to citizenship, and I agree with President [Barack] Obama's idea to do through executive action what the Congress refuses to do through legislation."