Protests break out in London, New York City, and other cities across the world expressing solidarity with Palestine. In Manhattan, pro-Palestinian protesters gather at the Israeli consulate on East 42nd Street. Additionally, U.S. Reps Rashida Tlaib and André Carson participate in a protest at the State Department in Washington, D.C.
Six Democratic mayors, of Portland, Chicago, Seattle, Albuquerque, New Mexico, Kansas City, Missouri, and Washington, D.C., urge the US Congress to block the Trump administration from sending federal law enforcement agents to their cities, saying the agents' presence, against the request of local authorities, is unlawful.
President Donald Trump and Attorney General William Barr announce a surge of "hundreds" of federal law enforcement officers to Chicago, Albuquerque and other cities in an effort to crack down on a recent wave of violent crime. The mayors of Portland, Seattle, Washington, D.C., Chicago, Atlanta and Kansas City pen a letter to Barr and acting Secretary of Homeland Security Chad Wolf expressing "deep concern and objection to the deployment of federal forces in our cities".
Many major cities around the United States implement curfews meant to prevent a second night of riots, including Atlanta, Chicago, Cleveland, Columbus, Denver, Los Angeles, Miami, Minneapolis, Milwaukee, Philadelphia, Pittsburgh, Portland, Rochester, Salt Lake City, and Seattle.
American Airlines halts flights for 90 minutes at its major hubs in Chicago, Dallas, and Miami because of a computer glitch. The incident produces a cascading effect of delays throughout all US airlines.
The Dow Live Earth Run for Water started on April 18th. The host cities are: Buenos Aires, Cape Town, Chicago, Hong Kong, Jimbaran, London, Los Angeles, Manchester, Melbourne, Mexico City, Milan, Minneapolis, New York, Lisboa, Rio de Janeiro, São Paulo, Singapore City, Stockholm, Toronto and Washington, D.C..