The Senate subpoenaed the White House and Vice President Dick Cheney's office Wednesday. Separately, the Senate Judiciary Committee also is summoning Attorney General Alberto Gonzales to discuss the program and an array of other matters that have cost a half-dozen top Justice Department officials their jobs, committee chairman Patrick Leahy announced. The escalation is part of the Democrats' effort to hold the administration to account for the way it has conducted the war on terrorism since the Sept. 11, 2001, attacks. The subpoenas extend the probe into the private sector, demanding among other things documents on any agreements that telecommunications companies made to cooperate with the surveillance program. The White House contends that its search for would-be terrorists is legal, necessary and effective — pointing out frequently that there have been no further attacks on American soil. Administration officials say they have given classified information — such as details about the eavesdropping program, which is now under court supervision — to the intelligence committees of both houses of Congress. "We're aware of the committee's action and will respond appropriately," White House spokesman Tony Fratto said. "It's unfortunate that congressional Democrats continue to choose the route of confrontation." --MORE