This. He's rightfully seen as a skilled politician in how he is running Florida and as a potential future president. However, there is a lot of recent history of "governor wonderful" types flopping later in their political careers when they seek federal office, however popular they were previously. The list is long: Chris Christie, Jeb Bush, Jay Inslee, Steve Bullock, Rick Perry, Tim Pawlenty, Bob McDonnell, Tommy Thompson, Scott Walker, Phil Bredesen. And even though they still have their Senate seats, Mark Warner and Tim Kaine both got humiliated in 2014/16.