During a panel discussion on Tuesday’s New Hampshire GOP primary, MSNBC contributor John Heilemann suggested that the enthusiasm for Donald Trump’s third run for the presidency, outside of his rabid base, is much less than it seems. Speaking with hosts Joe Scarborough and Mika Brzezinski, Heilemann noted that Trump rallies lack the energy of his previous runs and that his rallies are poorly attended and have been moved to smaller venues to make the former president look better. “I mean, look, Joe, you mentioned that event,” he began. “I was thinking about you on Saturday night. It’s the SNHU A…