All of a sudden, Donald Trump has signed a pledge not to run independently, and to back whoever wins the Republican Presidential nomination.
Anyone who believes he will keep his word is naive and delusional, as it is only a pledge for now since Trump is leading in all public opinion polls and could mount an independent campaign with his own money, a la Ross Perot in 1992 and 1996.
Perot well knew he could not win as an Independent, but ran anyway, and helped Bill Clinton in both elections.
This time, ironically, a Trump independent candidacy would insure that Hillary Clinton, or possibly Joe Biden or even Bernie Sanders, would win.
If one holds his or her breath hoping that Trump will be loyal to his pledge, think again and start breathing!