A day after Congress passed a measure blocking President Barack Obama’s plans to close Gitmo and bring detainees to the United States, the Republican National Committee launched digital ads targeting places like Pueblo and Leavenworth, Kansas, where officials have investigated possibly sending detainees.

It’s the first step in a plan to make Gitmo an issue for the 2016 election cycle, said Fred Brown, spokesman for the RNC.

The buy on the search engine Google and social media sites is targeted to independent voters in areas that could be affected by the decision to close Gitmo and relocate the detainees there.

One ad has a map of Colorado with a pinpoint on the Pikes Peak region.

“Tell Senator Bennet keep terrorists out of my backyard,” reads one of the ads. It links to a digital petition asking voters to tell Congress, the president and former Secretary of State Hillary Clinton not to close Gitmo.

Colorado’s Sen. Michael Bennet is a Democrat who Republicans consider vulnerable in 2016. Two GOP candidates from El Paso County have stepped up to challenge the incumbent.

Closing Gitmo has been a priority for Obama and recently Pentagon officials toured prisons in Florence and Canyon City, including the vacant supermax facility.

“Despite House passage of an NDAA that strictly prohibits the transfer of terrorists from Guantanamo Bay, the Obama Administration is instructing DOD officials to come investigate the Federal Supermax facility in Florence and a Colorado penitentiary facility in Canon City as potential destinations for terrorists,” U.S. Rep. Doug Lamborn, R-Colorado Springs, said. “It is outrageous and unacceptable for President Obama to waste time and taxpayer dollars on a dangerous fantasy that will go nowhere. The people of Colorado do not want the world’s worst terrorists housed in our own backyard and we will not stand for this. I will do everything in my power to resist these unlawful terrorist transfers from taking place.”

Sen. Cory Gardner, a Republican who unseated a Democrat to win Colorado’s other Senate seat in 2014, joined senators from Kansas and South Carolina on Thursday, calling for Congress to pre-emptively prevent the president from closing Gitmo and brining terrorists to American soil.

The measure was passed as part of the $607 billion defense budget.