Allegations concerning the Bush administration's refusal to provide information to the 9/11 Commission about the Saudi flights are disputed. The May 18, 2004 article in "The Hill" says that Commission vice-chairman Lee Hamilton "disclosed the administration's refusal to answer questions on the sensitive subject during a recent closed-door meeting with a group of Democratic senators, according to several Democratic sources." It also says that Republican Commission member John Lehman "said... that he told the senators the White House has been fully cooperative." President Bush, who met privately with the Saudi Arabian ambassador on the morning of Sept. 13, 2001, is suspected of personally authorizing the controversial flights while all other air travel had been halted.