A leftist activist has initiated a petition at Change.org calling on public and private venues to ban President Trump from holding campaign rallies in the wake of the “send her back” crowd chants targeting Muslim Rep. Ilhan Omar (D-MN) at Trump’s Greenville, North Carolina rally Wednesday night. The initial target of the ban is Trump’s August first rally set for U.S. Bank Arena in Cincinnati, Ohio. Igor Volsky, Executive Director of Guns Down America and a former Vice President of the Center for American Progress, announced the petition on Twitter, saying, “In light of the racist #SendHerBack chants at Trump’s...