She found it over-broad, and has been trying to repeal it ever since.
History has proved her right, as it has authorized dozens of military actions, the majority having nothing to do with the original attack, since then.
Lee has been trying to roll it back ever since, and the House Approriations Committee has finally voted to add repeal of the AUMF it its latest appropriation bill:
In September 2001, Rep. Barbara Lee (D-Oakland) was the only member of Congress to object to an Authorization for the Use of Military Force, a resolution in response to the terrorist attacks that paved the way for the war in Afghanistan.
In the 16 years since, the resolution has been used by President George W. Bush, President Obama and now President Trump as justification for more than 35 military actions in nearly 20 countries around the world — which means those presidents have not gone back to Congress for new permission to send troops into harm’s way.
On Thursday, the House Appropriations Committee opened the door to ending that 2001 authorization when it added Lee’s amendment to a Defense Department measure. Congress would have 240 days to debate a new authorization. At the end of that time the 2001 authorization would be repealed.
Lee has lobbied hard just to get to this first step, which was approved by a voice vote in the Republican led committee.
“I’ve been working on this for years and years and years. I’m just really pleased that Republicans and Democrats today really understood what I’ve been saying and I’ve been explaining for the last 16 years, and that is, this resolution is a blank check for perpetual war,” Lee said.
I don’t expect this to make it through the House, and if it did I would not expect it to make it through the Senate, and I would expect a veto threat from the White House, so I don’t expect this to make it into law, but it is a first step.