Minnesota and Illinois filed lawsuits against President Donald Trump’s administration Monday, seeking to halt a federal surge of immigration-enforcement officers into their states following the fatal shooting of a Minnesota woman by an ICE officer last week.

A Minnesota man accused of fatally shooting state lawmaker Melissa Hortman and her husband during a violent rampage in June now faces six federal charges, including stalking and murder, prosecutors announced Wednesday.

A massive search continued Sunday for a man suspected in the fatal shooting of Minnesota state Rep. Melissa Hortman and her husband, and a separate shooting attack on another state lawmakers and his spouse, authorities said.

A Minnesota state representative and her husband were killed and a state senator and his wife were wounded in what officials said were separate, targeted shootings early Saturday at their homes near Minneapolis.