Proud to stand with twenty-thousand strong, U.S. Senator Elizabeth Warren, Mayor Marty Walsh, ACLU Massachusetts, CAIR Massachusetts in Boston's Copley Square to reject President Trump's un-American Muslim ban. I'll fight to overturn it. President Trump, I say tear up this ban! Until this executive order is ripped in half, the U.S. will be engaging in the worst kind of prejudice and hate. #NoBanNoWall