Sen. Mike Lee (R-Utah) deleted a series of tweets on Tuesday that promoted unfounded conspiracy theories about the man ...

"I wanted him to know how much pain that caused me and the other people in my state," Democratic Sen. Tina Smith said, ...

His social media posts resemble those of a frequent user on right-wing message boards rather than those of a U.S. senator.

After Utah Sen. Mike Lee promoted right-wing conspiracy theories about the man who killed Melissa Hortman and her husband, a ...

The Republican senator from Utah suggested in social media posts that the killings were the work of “Marxists,” and mocked ...

It took only hours after an allegedly Trump-supporting gunman shot multiple Democratic state lawmakers and their spouses for ...

Available evidence does not support Sen. Mike Lee’s assertion that Boelter was driven by "Marxist" ideology. People who knew Boelter told news outlets he was politically right-leaning.  Law ...

NBC News turned to a University of Cincinnati expert on conspiracy theories to explain why politicians immediately spread ...

Republican Sen. Mike Lee took down social media posts mocking Democrats after the assassination of a Minnesota lawmaker ...

After the murders, Gov. Tim Walz called for "grace and compassion and vision and compromise and decency." Some on the right chose a different course.

Singling out Lee, Haines said he was “either mocking what happened” in Minnesota or suggesting something else entirely. After ...