This is just for the election year and does not include riots for criminal cases that did not go the way people thought they should.
2016 – Occupation of the Malheur National Wildlife Refuge, January–February 2015. 1 killed and several dozen arrested. Malheur National Wildlife Refuge, Oregon
2016 - Anaheim, California Feb. 29. 3 People stabbed and 13 others arrested during a Ku Klux Klan rally.
2016 – 2016 Donald Trump Chicago rally protest, March 11. Five people arrested and two police officers injured during a demonstration at the UIC Pavilion.
2016 - Democracy Spring rally in April. March to Washington D.C. and sit-ins lead to arrests.
2016 - At least 261 people were arrested across the U.S. in protests in New York City, Chicago, St. Paul, Minnesota; Baton Rouge, Louisiana, and other cities. In St. Paul, bottles and rocks flew as over twenty officers were injured. The protests were held in response to the officer-involved shootings of Alton Sterling and Philando Castile.
2016 - 2016 Milwaukee riots, Sherman Park, August 13–15. Milwaukee, Wisconsin.
2016 - 2016 Charlotte riot, September 20–21, Riots started in response to the shooting of Keith Lamont Scott by police
2016 - Dakota Access Pipeline protests, 411 Protesters Arrested. Multiple skirmishes with police, with vehicles, hay bales, and tires set on fire. 2016 - Ongoing - Anti-Trump protests, Nov. 9-27.
As a result of Donald Trump being elected 45th President of the U.S., thousands protested across twenty five American cities and unrest broke out in Downtown Oakland, California and Portland, Oregon. In Downtown Oakland over 40 fires started and police officers were injured. Protests in Portland were declared a "riot" with "extensive criminal and dangerous behavior" that were labeled by police as "unlawful."
2017 - Washington, D.C., Anti-Trump protests at Inauguration. Objects were thrown at police and a limousine was set on fire. More than 230 were arrested.
2017 - Berkeley, California, February 1, civil unrest ensued at UC Berkeley as Milo Yiannopoulos was scheduled to speak on the campus.