LAS VEGAS - A federal judge has dismissed a lawsuit from President Donald Trump's reelection campaign challenging Nevada's new vote-by-mail law, saying the campaign failed to show how it could be harmed by the law.The campaign, which has filed lawsuits in several states over voting rules, had asked the judge to block a new Nevada law that calls for mail-in ballots to automatically be sent to all active Nevada voters, a change prompted by efforts to contain the coronavirus.The campaign has argued the law passed by the Democrat-led state Legislature is unconstitutional, removes election safeguards and would allow people to cast votes after Election Day.People protest against the passage of a mail-in voting bill during a Nevada Republican.