If the delegation is traveling on a military airplane, the Defense Department pays those costs out of its own budget. Roll Call reported last year that the military maintains a fleet of about 375 airplanes that are used for VIP travel including Congressional travel and according to military records, these aircraft can cost as much as $20,000 per hour to operate. When a Congressional delegation travels in military aircraft, the cost of the travel is not included in the public disclosures.
When a CODEL uses commercial aircraft, the State Department pays for commercial travel and bills those costs to the same Congressional travel accounts, sources told Roll Call.
Several State Department sources said that other expenses that may be billed to the foreign currency accounts include overtime for embassy staff in the host country who work extra hours or weekends to accommodate the travelers; emergency prepaid cell phones for the travelers, programmed with local contact numbers; baggage handling fees; and extra conference rooms in the host hotel for delegation members to use as meeting space or a control room.
Members of a traveling Congressional delegation also receive a per diem to cover expenses, and this money also comes from the foreign currency fund.
The Wall Street Journal reported in March that per diems can be as much as $250 per traveler per day, and most Members simply pocket the cash or use it to go shopping for personal items.
At the end of March, the conservative watchdog group Judicial Watch filed a complaint with the Senate Ethics Committee and the House Office of Congressional Ethics alleging that members may be illegally pocketing taxpayer funds and requesting an investigation of the management of per diems.
Congress does not keep track of how much is spent out of the foreign currency accounts.
The Congressional Research Service has no record of studying the costs of Congressional foreign travel, and the Government Accountability Office has issued no reports on the matter since the mid-1980s.
Spokesmen for a half-dozen Congressional committees that have authorized foreign trips said that the State Department pays for all foreign travel.
A spokesman for the Senate Appropriations Committee said, Overseas non-DOD funded Congressional travel is paid for through permanent and indefinite budget authority authorized in ... the International Security Assistance Act of 1978 and therefore does not require an annual appropriation.
A Democratic leadership aide referred questions about the Congressional travel accounts to the Treasury Department and said, The bottom line here is that these are taxpayer dollars and Members are required to disclose the costs of these trips so there is complete transparency on funds spent.
The Treasury Department referred calls to the State Department, where officials said they did not know the source of the funds in the Congressional travel account.
The State Department also refused Roll Calls request for a tally of how much has been spent out of the accounts over the past three years.
A 2007 State Department briefing for Congressional staff, obtained by Roll Call, says only that travel expenses will be charged against specific congressional travel accounts held by the U.S. Treasury, but it makes no mention of needing to check on available funds for travel.
Former Sen. Scott Brown, R-Mass., candidate for U.S. Senate in New Hampshire, holds his hand over his heart during the singing of the national anthem as he waits to take the stage for his town hall campaign rally with Sen. John McCain at the Pinkerton Academy in Derry, N.H., on Monday, Aug. 18, 2014.