House Democratic Leader Nancy Pelosi on Friday endorsed a call to censure President Donald Trump for his response to last weekend's violent white supremacist march in Charlottesville, Va."The President’s repulsive defense of white supremacists demands that Congress act to defend our American values," she said.Pelosi noted that Reps. Jerrold Nadler (D-N.Y.), Bonnie Watson Coleman (D-N.J.) and Pramila Jayapal (D-Wash.) have introduced a censure resolution and added, "Every day, the President gives us further evidence of why such a censure is necessary."At least 79 Democratic colleagues have already signed on to the measure, the three lawmakers said Friday.A censure represents a rarely used, significant rebuke of the president and can be a preliminary step before impeachment.