Threats and violent acts have become part of the political landscape, still shocking but somehow not so surprising.

A suspect has been arrested and charged in the wake of the Minnesota lawmaker shootings involving the deaths of Rep. Melissa Hortman and her husband Mark and the injury of Sen. John Hoffman and his wife Yvette.

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

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

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 attacks on two Democratic Minnesota state lawmakers at home are the latest in a grim and alarming spike in political violence

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.