A former Trump White House staffer turned CNN pundit set off a wave of mockery Monday after comparing the U.S. economy to an overweight person — and pitching mass deportation as its weight-loss drug.Caroline Sunshine, a frequent panelist on CNN's NewsNight with Abby Phillip, floored her fellow guests with the analogy during a segment on the economy, according to Mediaite."Here's what I'm going to paint the picture for you," Sunshine began. "The …