The president also reportedly met Monday with former campaign officials Corey Lewandowski and David Bossie about joining his crisis-communications war room, according to the news outlet.
White House Press Secretary Sean Spicer claims that "a small group of people know exactly" what President Donald Trump meant when Trump posted a seemingly unintelligible tweet early Wednesday morning. He is expected to be at the White House on Tuesday to meet with his staff, said the official, who required anonymity to discuss a personnel move that has not yet been formally announced.
A Republican consultant, Dubke joined the White House team in February after campaign aide Jason Miller - Trump's original choice for communications director - withdrew from consideration. "There will be more changes, but I don't know how fast they are going to come".
The intent was to connect Trump's chief national security adviser at the time, Michael Flynn, with Russian military leaders, a person familiar with the discussions told the AP.More news: Palestinian hunger strike ends as Israel yields to prison demands
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The disclosure of the back channel has put the White House on the defensive.
Trump also has renewed his criticism of Germany following Chancellor Angela Merkel's suggestion that her country needs to adopt a more independent stance in world affairs.
"It is never as bad as folks think it is on the outside", one official said. Dubke offered his resignation on May 18, prior to the president's overseas trip to the Middle East and Europe. The Post suggested that Dubke struggled to build relationships in the sometimes fractious White House.
Dubke's exit comes as Trump considers and larger shakeup of his communications staff and other key personnel as he tries to contain the growing scandals related to ties between Russian Federation and his campaign.
"Mike will assist with the transition and be a strong advocate for the president and the president's policies moving forward", Priebus said.