If you know people in upcoming primary states who are planning to vote for Trump or are open to doing so, send them a link to this post. Here's a collection of several brief videos about Trump that I've cited in previous threads:
Trump's mishandling of race issues, derogatory comments on women, abuse of eminent domain, etc.
Trump advocating liberalism
Trump claiming that judges sign bills
Trump's ignorance of the nuclear triad
Trump mocking a handicapped man for his handicap
Trump repeatedly acting as if he doesn't know who David Duke is and failing to condemn Duke and the KKK when asked to do so
Trump's ignorance of religious issues and how dubious his claim to be a Christian is