Michael Reaves, The Denver PostDonald Trump protesters during the Trump campaign stop in Denver Friday, July 1, 2016.Andy Cross, The Denver PostProgress Now Colorado building "tearing down walls of hate" anti-trump wall Friday, July 1, 2016.Michael Reaves, The Denver PostDonald Trump hats during the Trump campaign stop in Denver Friday, July 1, 2016.Andy Cross, The Denver PostProgress Now Colorado building "tearing down walls of hate" anti-trump wall Friday, July 1, 2016.Michael Reaves, The Denver PostDonald Trump pins during the Trump campaign stop in Denver Friday, July 1, 2016.Michael Reaves, The Denver PostDonald Trump protesters during the Trump campaign stop in Denver Friday, July 1, 2016.Show Caption of Expand Donald Trump makes his Colorado debut Friday, July 1, 2016 morning at a summit billed as the largest gathering of conservatives outside Washington. More than 4,000 people are expected to attend the Western Conservative Summit at the Colorado Convention Center in Denver, a production of a Centennial Institute think tank housed at Colorado Christian University.