A manhunt is underway for the gunman who was impersonating a police officer and had a list of possible targets, officials said.

The assassination of a Democratic Minnesota state lawmaker and her husband and the shooting of another lawmaker and his wife at their homes are just the latest addition to a long and unsettling roll call of political violence in the United States.

The United States has a long and grim history of political violence, from presidential assassinations to lynchings and violence aimed at Black people in

The Minnesota assassination is causing some state legislators to rethink home security and how much personal information they make public.

U.S. Capitol Police increased security for Klobuchar and Smith following the attacks, which occurred early Saturday morning. Minnesota's entire congressional delegation, both Republicans and Democrats, released a joint statement condemning the killings.

While Washington hosted a military parade, large crowds gathered across the country Saturday to peacefully protest President Donald Trump’s policies. The threat of violence – and news of a political assassination in Minnesota – added to tensions.

Authorities are on the second day of the hunt for a man suspected of killing Minnesota State Rep. Melissa Hortman and her husband at their house. The suspect also is believed to have shot State Sen. John Hoffman and his wife in their home.

A manhunt is underway in Minnesota for a gunman who shot and killed a state representative and wounded a senator in what authorities say was a “targeted” attack.