Already declared (more or less):
Ted Cruz
Marco Rubio
Jeb Bush
Rand Paul
Ben Carson
Carly Fiorina
In the mix (but not yet declared)
Rick Santorum
Mike Huckabee
Caribou Barbie
Scott Walker
Did I miss anyone? That is a real politick rouge's gallery.
By the time this is over, they're going to borrow Mr. Bus from Mittens because even the Republican Clown Car™ won't be able to hold this crew.