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MIAMI (CBSMiami) — President Donald Trump started the day on Twitter saying he feels total and complete vindication after his former FBI director’s congressional testimony then used a Rose Garden news conference to elaborate – saying he’d be willing to testify under oath “100%.”

Trump faced the media at a joint news conference with his Romanian counterpart – ready for questions about fired FBI Director James Comey.

“No collusion. No obstruction. He’s a leaker,” said Trump when asked about Comey.

On Thursday, Comey revealed he gave notes about his conversations with the president to a friend to give to a reporter.

Trump’s personal attorney plans to file a complaint with the Justice Department and Senate Intelligence Committee next week, taking issue with Comey handing off notes about private conversations with the president.

Related: Comey: Trump Is A Liar Who Can’t Be Trusted

Comey explained to lawmakers why he wrote the detailed memos.

“I was honestly concerned he might lie about the nature of our meeting so I thought it really important to document,” said Comey on Thursday.

Comey also testified he took the suggestion that he “let go” the investigation into former national security adviser Mike Flynn as an order from the president.

“I think there is no question he abused power – whether obstructed justice remains for the facts to come forward – and that’s what we want are the facts,” said House Minority Leader Rep. Nancy Pelosi (D-CA).

Related: “President Never Told Comey ‘I Need Loyalty'”: Trump Atty On Testimony

Two congressional committees and special counsel Robert Mueller continue to investigate Russian meddling in the 2016 election and possible ties between Trump associates and Moscow.

The president’s son-in-law and senior adviser Jared Kushner is expected to speak to the Senate Intelligence Committee in the coming weeks.

A former Assistant U.S. Attorney told CBS News that the leaked memo was unclassified which means Comey could leak it legally. He also believes there is a good chance the Russia investigation may still be unresolved by the mid-term elections.