Ted Johnson, Dominic Patten Donald Trump’s town hall with NBC News — competing against a similar event with Joe Biden on ABC News — opened with a contentious series of questions with moderator Savannah Guthrie.At times, Trump sounded angry and irate as Guthrie grilled him over the details of his testing results, his failure to immediately condemn white supremacists and his trafficking of conspiracy theories.Guthrie, co-anchor of Today, asked Trump why he retweeted a tweet earlier this week that