Just a reminder, Trump voided that pledge back in March. Contracts (albeit this was not a legal contract, just a political stunt) are two way streets.
On March 30, of this year, FOX News (also known as “Trump News”) reported (emphasis added to make it easy for Trumpists to understand):
Donald Trump said Tuesday that he would no longer honor his pledge to support the eventual Republican nominee for president, while fellow candidates Ted Cruz and John Kasich refused to say whether they would back the party’s pick.
All three GOP contenders appeared at a CNN town hall in Milwaukee one week before Wisconsin’s April 5 primary.
When asked if he would keep the pledge he signed last September, Trump responded, “No, I won’t.” The real estate mogul explained that he was taking back the pledge because, “I have been treated very unfairly,” and listed the Republican National Committee and party establishment among those he believes have wronged him.....
http://politistick.com/donald-trump-broke-pledge-to-back-gop-nominee/
