After two hours, Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE fired back at Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE’s campaign telling him to delete his Twitter account.

“How long did it take your staff of 823 people to think that up — and where are your 33,000 emails that you deleted?” the presumptive Republican presidential nominee said.

How long did it take your staff of 823 people to think that up--and where are your 33,000 emails that you deleted? https://t.co/gECLNtQizQ — Donald J. Trump (@realDonaldTrump) June 9, 2016

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It took Clinton’s team just five minutes to respond to Trump’s tweet about President Obama's endorsement of Clinton, which he sent at 2:22 p.m. Clinton’s campaign fired back with "Delete your account," at 2:27 p.m.

Trump returned fire at 4:40 p.m.

His response echoes the reply of Reince Priebus, the chairman of the Republican National Committee, who went after Clinton over her private email server.

“If anyone knows how to use a delete key, it’s you,” Priebus wrote.