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.

Utah’s senior senator has drawn widespread condemnation for his behavior since the political assassinations over the weekend ...

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 ...

Over the weekend, a nightmare unfolded in Minnesota. Democrat politicians and their families were targeted by an attacker ...

Tim Miller, Host of The Bulwark Podcast, Claire McCaskill, former Democratic Senator from Missouri join Nicolle Wallace on ...

Mike Lee's inflammatory social media posts about last weekend's deadly political shootings in Minnesota are drawing fresh ...

The debate about the Minnesota shooter's politics is now a predictable manifestation of America's polarization.

Vance Boelter targeted Democrats, leaning politically right, with no Marxist ties as suggested by the evidence.