Democratic presidential candidate Michael Bennet is dodging responsibility for his role in provoking a student walkout at a vigil for victims of the STEM School Highlands Ranch shooting. Bennet, who has represented Colorado in the Senate since 2009, responded to criticism that a vigil organized by the Brady Campaign to Prevent Gun Violence on Wednesday was unduly politicized. The vigil drew national attention after a mass of students walked out in protest because numerous speakers, including Bennett, chose to argue in favor of gun-control while honoring the victims. "Last night should have been about Kendrick Castillo and the STEM School...