On the floor of the U.S. Senate Thursday, Republican Sen. Mike Lee of Utah delivered an impassioned speech condemning mob violence in the United States. Lee offered a resolution, which his Democrat colleague, Sen. Bob Menendez of New Jersey, attempted to amend by inserting language attacking President Donald Trump. Menendez then repeatedly tried to silence Lee. Sen. Ted Cruz, R-Texas, served as the presiding officer and overruled Menendez. A lightly edited transcript and video are below.