Roger Stone says he is not concerned that he neglected to tell to congressional investigators about a meeting he held with a Russian national offering dirt on Hillary Clinton, despite being asked about foreign contacts, the longtime friend of President Donald Trump told ABC News.

Stone said Sunday he forgot, and his lawyer has since sent a letter to amend his testimony.

“I just didn’t remember. 2016 was a pretty busy year,” Stone said. “I don’t think a failure of memory constitutes a perjury.”

Stone served as an adviser to Trump’s presidential campaign but left amid controversy in 2015. The contact in May 2016 was between Stone —- a self-described political “dirty trickster” — Michael Caputo, another former Trump campaign aide, and Henry Greenberg, reportedly a Russian citizen who claimed to have damaging material on Hillary Clinton, as first reported by The Washington Post on Sunday.

Former Trump campaign official Michael Caputo arrives at the Hart Senate Office building to be interviewed by Senate Intelligence Committee staffers, May 1, 2018, in Washington.

The new disclosure brought immediate concerns from Democrats overseeing congressional investigations into allegations of Russian collusion in the 2016 presidential campaign.

“In multiple respects now, the testimony of Roger Stone appears inaccurate or deliberately misleading,” Rep. Adam Schiff, D-Calif., the ranking Democrat on the House Intelligence Committee, said Sunday.

“The truthfulness of many of our witnesses has been difficult to ascertain, which is why I have urged the committee to make the transcripts available to Special Counsel [Robert] Mueller for a determination whether any witnesses committed perjury before our committee,” Schiff added. “The Majority’s unwillingness to do so demonstrates that protecting the President remains its paramount objective, even when it means shielding witnesses who…