According to new documents obtained by the House oversight committee, former national security adviser Michael Flynn was warned by the Defense Intelligence Agency in 2014 against accepting foreign payments as he entered retirement. An investigation of Flynn was opened by the inspector general of the Department of Defense earlier this month. Rep. Elijah Cummings stated, "These documents raise grave questions about why General Flynn concealed the payments he received from foreign sources after he was warned explicitly by the Pentagon.” The news comes only days after Cummings and House oversight chairman Jason Chaffetz said Flynn may have broken the law when he didn’t disclose payments he received.