Washington (CNN)National security adviser H.R. McMaster has resigned and will be replaced by former US ambassador and Fox News analyst John Bolton, President Donald Trump announced in a tweet on Thursday.
“I pleased to announce that, effective 4/9/18, @AmbJohnBolton will be my new National Security Advisor. I am very thankful for the service of General H.R. McMaster who has done an outstanding job & will always remain my friend. There will be an official contact handover on 4/19.”“The two have been discussing this for some time. The timeline was expedited as they both felt it was important to have the new team in place, instead of constant speculation,” a White House official said. “This was not related to any one moment or incident, rather it was the result of ongoing conversations between the two.”