He has tremendous momentum.... at this stage and I think, enough to see him through.
He shouldn't let himself be intimidated. Threatening a third party run is small and snarky. It plays RIGHT into the Liberal scheme.
I might add, it plays RIGHT into the GOP scheme as well... which is NOT much different than the Liberal one.
Trump's not intimidated. He's putting the GOP establishment on notice about trying anything funny. He's telling Priebus to reign in the lackies like that guy in NH (Fergus Cullin) who's trying to remove Trump from the ballot so Jeb can win.
He's showing them he's got the still got the leverage.