LEAVENWORTH, Kan. (AP) — Republican U.S. Sen. Pat Roberts is raising concerns that President Barack Obama may try to place terrorist suspects at Fort Leavenworth, Kansas. And Roberts is vowing to stop it, if re-elected.

Roberts received hearty applause Thursday in Leavenworth while pledging to keep terrorists out of the Kansas prison. Obama has not recently mentioned Leavenworth as a destination for prisoners now held at Guantanamo Bay, Cuba.

The senator denies he’s fear-mongering in an attempt to gain an advantage in a tight election against independent challenger Greg Orman. But he also alleges that Orman can’t be trusted to stand up to Obama.

Anti-abortion and pro-gun groups also have been coming to Roberts’ defense by raising fears about Orman.

Orman has said the criticism indicates Roberts is part of the problem in Washington.