Sen. Markwayne Mullin (R-Okla) has agreed to meet with members of the Senate Homeland Security Committee behind closed doors after a disagreement over his refusal to answer questions about past overseas trips. The issue was first raised by Sen. Gary Peters (Mich.), the top Democrat on the Senate DHS Homeland Security and Governmental Affairs Committee, who asked Mullin to explain remarks that indicated he had seen active combat. Mullin had previously stated that he was involved in a trip as a House member to train with a small contingency and go to a certain area in 2015. However, he did not provide specific details on the mission. The FBI has not confirmed these statements.