WASHINGTON (AP) -- President Donald Trump confirmed Friday he was under investigation and appeared to take aim at a senior Justice Department official, in a tweet that seemed to encapsulate his frustration with the ongoing focus on Russia's involvement in the 2016 election.
"I am being investigated for firing the FBI Director by the man who told me to fire the FBI Director! Witch Hunt," the president wrote in his tweet.
In another tweet earlier Friday, Trump writes, "After 7 months of investigations & committee hearings about my 'collusion with the Russians,' nobody has been able to show any proof. Sad!"
The Trump tweets come after the top lawyer for his transition team warned organization officials to preserve all records and other materials related to the Russia probe. An official of Trump's transition confirmed the laywer's internal order sent Thursday.
The transition official spoke on condition of anonymity because the person was not authorized to discuss post-election decisions publicly.