A U.S. judge on Thursday dismissed a libel lawsuit filed by President Donald Trump's re-election campaign against CNN over a 2019 opinion piece which it said suggested the campaign would be open to Russian interference, according to a court document. The campaign sued CNN, which is owned by AT&T Inc, in March over the June 13, 2019, piece by Larry Noble, a CNN contributor and former general counsel of the Federal Election Commission. U.S. District Judge Michael Brown said the campaign had failed to prove the piece was maliciously published.