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Corey Lewandowski speaks to a reporter before the Republican presidential candidate makes his way to the podium to speak to supporters and the media at Trump Towers following the conclusion of primaries Tuesday in northeastern states on April 26, 2016 in New York, New York.
Corey Lewandowski speaks to a reporter before the Republican presidential candidate makes his way to the podium to speak to supporters and the media at Trump Towers following the conclusion of primaries Tuesday in northeastern states on April 26, 2016 in New York, New York.

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    Trump adviser resigns after tweeting about Lewandowski

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Trump adviser resigns after tweeting about Lewandowski

A top adviser to Donald Trump resigned Monday after sending a mocking tweet about just-fired campaign manager Corey Lewandowski. CNN's Jim Acosta reports.

Trump adviser resigns after tweeting about Lewandowski

A top adviser to Donald Trump resigned Monday after sending a mocking tweet about just-fired campaign manager Corey Lewandowski. CNN's Jim Acosta reports.