Trump is directly responsible for planting the seeds of violence in the heads of his supporters from the time he suggested the second amendment people could take care of Hillary. He has offered to pay the legal expenses of people that roughed up protesters at his rallies. "Trump turned on Republicans who refused to support his efforts to overturn the election results, calling them weak, and urged Vice President Mike Pence to reject the Electoral College results. Trump told listeners, “You will never take back our country with weakness.” (Trump’s lawyer Rudy Giuliani also delivered a speech in which he encouraged “trial by combat.”) He encouraged them to head to the Capitol to support objections to certification of the vote. "
https://www.vox.com/21506029/trump-violence-tweets-racist-hate-speech