If they weren't already, the gloves are now certainly off for GOP presidential candidates Donald Trump and Jeb Bush, who exchanged verminous tit for tat messages over Twitter.
In an interview with Bloomberg of Friday, Trump criticized George W. Bush when he talked about the Sept. 11, 2001 attacks.


How pathetic for @realdonaldtrump to criticize the president for 9/11. We were attacked & my brother kept us safe.
 
— Jeb Bush (@JebBush) October 16, 2015
Trump took little time in responding, throwing haymakers right back.



On Saturday afternoon, Bush tweeted an almost two-minute video which played circus-like music the whole time and featured clips of Trump either dodging questions or giving controversial answers.

In less than two weeks, both men, along with the other GOP candidates, will square off in the third primary debate, which will be hosted by CNBC in Boulder, Colo. on Oct. 28.