MONTICELLO, Iowa — The Table of Knowledge was delving into President-elect Donald J. Trump’s plans to upend government, and marveling at how he had forced his fellow Republicans in the House to reverse themselves on gutting the Office of Congressional Ethics. “He’s getting responses; things are happening,” Jerry Retzlaff, a retiree, said. “He got Congress to turn themselves around with one tweet.” “There’s no secret the press doesn’t like him, and neither does a lot of the leadership,” he added. “And that’s because he’s planning on making a lot of changes.” The eight men around a rectangular table, sipping coffee...