Utah Republican Sen. Mike Lee deleted his controversial social media posts on the assassination of Minnesota Democratic state Rep. Melissa Hortman after facing backlash from across the aisle.

But for those who regularly follow Lee’s X feed, none of this should come as a surprise.

A day after Minnesota Democrat state Rep. Melissa Hortman and her husband were shot and killed in their home on June 14, Utah Republican Sen. Mike Lee baselessly suggested their assassination was con...