Trump has had plenty to say about Bush, whom he has repeatedly assailed both on the campaign trail and on Twitter:
See Trump's comments below;
Jeb's brother George insisted on a $100,000 fee and $20,000 for a private jet to speak at a charity for severely wounded vets. Not nice!
— Donald J. Trump (@realDonaldTrump) July 9, 2015
Jeb Bush will never secure our border or negotiate great trade deals for American workers. Jeb doesn't see & can't solve the problems.
— Donald J. Trump (@realDonaldTrump) July 5, 2015
That's a whole lot of speech battle going on in US presidential campaigns