Dominion Voting Systems’ defamation case against Fox News, which goes to trial in Delaware next week, is expected to stoke hot-button debates over journalistic ethics, the unchecked flow of misinformation, and the ability of Americans to sort out facts and falsehoods in a polarized age.For a particular subset of the legal and media communities, the trial is also shaping up as something else: the libel law equivalent of the Super Bowl.“I’ve been involved in hundreds of libel cases, and there has never been a case like this,” said Martin Garbus, a veteran First Amendment lawyer. “It’s going to be a dramatic moment in American history.”With jury selection set to begin on Thursday in Delaware Superior Court in Wi …