https://en.wikipedia.org/wiki/Iraq_Resolution#Passage
Passage[edit]
An authorization by Congress was sought by President George W. Bush soon after his September 12, 2002 statement before the U.N. General Assembly asking for quick action by the Security Council in enforcing the resolutions against Iraq.[5][6]
Of the legislation introduced by Congress in response to President Bush's requests,[7] S.J.Res. 45 sponsored by Sen. Daschle & Sen. Lott was based on the original White House proposal authorizing the use of force in Iraq, H.J.Res. 114 sponsored by Rep. Hastert & Rep. Gephardt and the substantially similar S.J.Res. 46 sponsored by Sen. Lieberman were modified proposals. H.J.Res. 110 sponsored by Rep. Hastings was a separate proposal never considered on the floor. Eventually, the Hastert-Gephardt proposal became the legislation Congress focused on.
Passage of the full resolution[edit]
Introduced in Congress on October 2, 2002, in conjunction with the Administration's proposals,[3][8] H.J.Res. 114 passed the House of Representatives on Thursday afternoon at 3:05 p.m. EDT on October 10, 2002, by a vote of 296-133,[9] and passed the Senate after midnight early Friday morning, at 12:50 a.m. EDT on October 11, 2002, by a vote of 77-23.[10] It was signed into law as Pub.L. 107–243 by President Bush on October 16, 2002.