Majority of Hispanics in the U.S. believe immigration is the most important problem facing the country today, underscoring the role of Hispanic voters in the upcoming midterm elections.

According to a Gallup poll published on Friday, U.S. Hispanics who ranked immigration as the country's most important problem nearly doubled from 13 percent in the first half of the year to 25 percent in the last three months.

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Additionally, the figure also rose from 4 percent to 15 percent among American adults.

The poll found that immigration has become a more serious concern among Republican Americans compared to their Democrat counterparts.

In the last three months, 20 percent of adults who identified as Republican said immigration was a top concern compared with 8 percent of Democrats; while in the first half of this year, 4 percent of Republican adults and 3% of Democrats said immigration was the country's most pressing issue.

Earlier this month, President Barack Obama acceded to requests from some Democrats to push back executive action on immigration until after the elections. But despite the relief of Senate Democrats who feared the issue would be used against them during the campaigns, the delay has angered activists who were promised an immigration reform by the end of the summer.

The GOP claims the delay only serves to add fuel to their campaigns for attacking the Democrats because the latter only addresses the issue when it is politically convenient, the Los Angeles Times relayed.

However, a separate Politico poll conducted last month may suggest otherwise. Based on the poll results, 48 percent of Hispanic constituents still see Democrats as the more trustworthy party with regard to the issue of immigration compared to 27 percent who sided with the GOP.

But majority of American voters are more likely to trust the Republican Party that the Democratic Party on the issue. Thirty-four percent of polled voters said they trusted the GOP more while 31 percent backed Democrats. Thirty-five percent were unsure which party they trusted more.

 Hispanic turnout will likely be instrumental in a number of Senate races this November but the support could go either way. On one hand, policy makers' lack of action on the issue could cause an upsurge of Hispanic turnout in the ballots this November. On the other hand, this could drive Hispanics not to vote in the elections.

TagsGOP, Republicans vs. Democrats, Barack Obama, elections, immigration, Senate, Gallup, Politico