Trump threatened to invoke the Insurrection Act (again). What is it?

Law enforcement officers stand amid tear gas at the scene of a shooting Wednesday in Minneapolis.

Adam Gray / AP

President Trump on Thursday threatened to invoke the Insurrection Act to suppress protests in Minnesota, a week after an ICE agent fatally shot a 37-year-old Minneapolis woman. 

The shooting death of Renee Macklin Good sparked protests nationwide against ICE’s continued presence in Minnesota and across the country. 

Protesters were further incensed on Wednesday evening when ICE agents in Minneapolis shot a Venezuelan immigrant in the leg during an attempted arrest.