US national security adviser John Bolton has resigned as from his role in the White House, according to a series of tweets from President Donald Trump.

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In direct contrast to Trump's tweets, Bolton tweeted that he turned in his resignation yesterday, to which Trump said, "Let's talk about it tomorrow." Trump claimed in his tweets that he decided that Bolton was no longer needed at the White House and told him so last night.

Bolton had been at his White House post since .April 2018. According to CNBC, Trump tweeted the news about 90 minutes before Bolton was set to appear at a press briefing with Secretary of State Mike Pompeo and Treasury Secretary Steven Mnuchin. The White House previously announced Bolton's appearance at the briefing.

The New York Times reported was Trump's third national security adviser. They disagreed on how to handle foreign policy with Iran, North Korea and Afghanistan.

According to a White House spokesman, deputy national security advisor Charles Kupperman will be acting national security advisor.