Trump fired back on social media after Romney announced plans to make a case against the GOP front-runner in a speech. SUBSCRIBE to ABC NEWS: .<br />Former Republican presidential nominee Mitt Romney is charging into the increasingly divisive 2016 GOP White House sweepstakes Thursday with a harsh .<br />Summer Concert Tour Dates!!! ▻◅ Download on iTunes ▻◅ Tshirts for this battle: .<br />In his Talking Points Memo tonight, Bill OReilly weighed in on the recent war of words between Donald Trump and Jeb Bush, and what it reveals about the state .
