Confused about who to vote for. Take it from law enforcement leaders and sheriffs. They're endorsing Trump conservative Mark Mesmer because of his strong stance against illegal immigration and his commitment to secure the border. They're endorsing Mark Mesmer because he is the candidate committed to building President Trump's Wall on Tuesday. May 7th vote to secure our border vote. Mark Mesmer for Congress. The RJC victory fund is responsible for the content of this advertising.