WASHINGTON (AP) — President Donald Trump signed an unprecedented $2.2 trillion economic rescue package into law after swift and near-unanimous action by Congress to support businesses, rush resources to overburdened health care providers and help struggling families during the deepening coronavirus epidemic.

Acting with unity and resolve unseen since the 9/11 attacks, Washington moved urgently to stem an economic free fall caused by widespread restrictions meant to slow the spread of the virus that have shuttered schools, closed businesses and brought American life in many places to a virtual...