New Hampshire Senator Kelly Ayotte is pledging to fight a proposal by the White House to shut down the detention center at Guantanamo Bay in Cuba.
Pentagon officials are expected to deliver to a plan to Congress Tuesday that would transfer many of the remaining detainees to a facility in the United States.
Ayotte, a Republican, says the Obama administration refuses to level with the American people regarding the terrorist activities and affiliations of the detainees who remain at Guantanamo.
She says closing Guantanamo will make Americans less safe.
The Associated Press reports administration officials say closing the facility would require up to $475 million in construction costs, but would save as much as $180 million per year in operating costs.