Congress plans to pass a mammoth coronavirus relief and government spending package tonight, injecting long-delayed aid into the fight against a once-in-a-century health and economic crisis. The House will vote on the more than $2 trillion legislation first, and the Senate will follow in a vote that will likely drag late into the night. Congressional leaders attached $900 billion in pandemic aid to a $1.4 trillion measure to fund the government through September 30th. The U.S. is planning a study to find out why a handful of people have suffered from allergic reactions after receiving a Covid vaccine, an NIAID official told CNBC. The study is expected to include “several hundred” people who have a history of severe allergic reactions, said Alkis Togias, chief of the NIAID’s Allergy, Asthma, and Airway Biology Branch. CNBC’s Shep Smith reports the latest on a botched police raid in Chicago as the city’s top lawyer resigns and the mayor addresses the handling of the error. NBC Chicagos Christian Farr reports. Plus, a CNBC investigation, “Flying Blind”, covering the dangerous consequences of the government’s early handling of the pandemic.