What Setback Did the Bush Administration Suffer in Its War

What setback did the Bush administration suffer in its war on terror in 2008?

A) The House voted for the immediate withdrawal of troops from Iraq.
B) The press disclosed the secret family ties between the Bush family and the Saudi-Arabian monarchy.
C) The Senate began its investigations on the corruption and abuses of Vice President Dick Cheney's former company, Halliburton.
D) The United States Supreme Court ruled that the Guantanamo Bay detainees could invoke rights under the U.S. Constitution.
E) U.S. troops had to withdraw from Iraq.