However, it is likely that he was tweeting about Deputy Attorney General Rod Rosenstein, or Mueller who is examining whether the president obstructed justice by firing ex-FBI Director James Comey last month amid the ongoing Russian Federation investigation.
Rosenstein prepared a memo for Attorney General Jeff Sessions back in early May, which raised repeated questions about how Comey had handled the Hillary Clinton email investigation - at first, that seemed to be the basis for Comey's firing by the President, until Mr. Trump said a few days later that the Russian Federation investigation was on his mind.
Some Republicans have called for Mueller's firing, citing alleged conflicts of interest.
The deputy attorney general wrote the memo that recommended Mr. Comey's firing, which the president initially relied on to justify the dismissal.More news: Murray wins Olympic final repeat in third round of French Open
At a Senate Intelligence Committee hearing last week, Coats and Rogers refused to say whether Trump asked them to intervene in the investigation, which is also examining whether the Trump campaign team colluded with Russian Federation during last year's presidential campaign. He seems to be confirming he's under investigation for the firing of former FBI Director James Comey.
While accusing the Clinton campaign and the Obama administration of indulging in illegal acts, Trump had said that "there was never a special counsel appointed to oversee the acts of his Democrat predecessors".
Speaking to Harris Faulkner, Wallace said Trump once again kept Special Counsel Robert Mueller's investigation at the top of the headlines.More news: Taliban storm Afghan police compound, kill 5 police
"He made a recommendation - but regardless of recommendation, I was going to fire Comey, knowing there was no good time to do it", Mr. Trump said in April.
Mr Flynn was forced out in February after he misled the vice-president about his conversations with Russia's ambassador before Mr Trump took office.
Trump also attacked the media Friday morning.More news: Paul Ryan to Donald Trump: 'Let Robert Mueller Do His Job'
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