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.

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.

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

Follow along for the latest on the manhunt after the deadly shootings that claimed the life of a Minnesota lawmaker.

Investigators found a cowboy hat near the vehicle and were working to determine whether it belongs to Boelter.

Governor Maura Healey led Massachusetts lawmakers in condemning the shootings of state politicians and their spouses in Minnesota​ on Saturday.

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.