>> That news conference just sealed Trump’s nomination as it showed/demonstrated ... Trump, Cruz, Rubio
Did all three appear together at that news conference? The one I watched had Trump in Palm Beach with Christie standing to the left. If that’s the one you’re referring to, Trump was indeed “well-mannered” — Presidential. And let’s not forget that Trump was also gracious after Iowa.
While Trump may be an ostentatious winner, he’s certainly not a sore loser.