Republican presidential front-runner Donald TrumpDonald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE was widely mocked on social media Wednesday for mispronouncing Tanzania in a major foreign policy speech he delivered.

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White House press secretary Josh Earnest also made a crack about Trump's misstep during a press briefing Wednesday. "Apparently, the phonetics are not included on the teleprompter," Earnest joked.