Lawmakers blamed the eventual collapse of the U.S.-supported Afghan government on current and past administrations and pushed for quick action to help Americans and Afghans still there during a Wednesday Senate Foreign Relations Committee hearing aimed at learning from U.S. policy shortcomings in the Afghanistan war.

“The tragic events of this past summer were the culmination of poor decision-making by both Republican and Democratic administrations going back to 2001,” said Sen. Bob Menendez, D-N.J., who chairs the committee.

The Taliban swept across Afghanistan, taking over cities as American troops withdrew. The end of the 20-year war in Afghanistan was marked by a deadly day, with 13 service members killed and 18 others wounded in a series of attacks outside Hamid Karzai International Airport in Kabul.

U.S. involvement in Afghanistan suffered from “a lack of strategic coherence,” said Sen. Jim Risch, R-Idaho, ranking member of the committee. He underscored how the evolution of “a light American footprint” into a full-blown counterinsurgency and nation-building effort contributed to the eventual collapse of the U.S.-supported Afghanistan government.