A former foreign policy adviser to President Donald Trump’s campaign has acknowledged in testimony to Congress that he had contact with a high-level Russian official while on a trip to Russia last year, according to a transcript released on Monday.

Carter Page, an unpaid adviser who left the campaign before Trump was elected, told the House intelligence committee last week that he “briefly said hello to” Russian deputy prime minister Arkady Dvorkovich when he travelled to Russia for a speech. Under repeated questions about the contact – which he had at times denied in the past – Page said that he had spoken to Dvorkovich after his July 2016 speech at Moscow’s New Economic School.

“It was a very brief interaction. It was some nice pleasantries. I cannot recall the precise words I said, but it was sort of best wishes, and, you know, that’s about it,” Page said in response to several questions about the contact.

Democrats on the panel were skeptical of his explanation. California Rep. Adam Schiff, the top Democrat on the panel, produced a campaign email during the questioning in which Page had written that Dvorkovich had told him “in a private conversation” that he had expressed support for Trump and the desire to work together. Page responded that the conversation had been less than 10 seconds long.

Quick Guide What you need to know about the Trump-Russia inquiry Show How serious are the allegations? The story of Donald Trump and Russia comes down to this: a sitting president or his campaign is suspected of having coordinated with a foreign country to manipulate a US election. The story could not be bigger, and the stakes for Trump – and the country – could not be higher. What are the key questions? Investigators are asking two basic questions: did Trump’s presidential campaign collude at any level with Russian operatives to sway the 2016 US presidential election? And did Trump or others break the law to throw investigators off the trail? What does the country think? While a majority of the American public now believes that Russia tried to disrupt the US election, opinions about Trump campaign involvement tend to split along partisan lines: 73% of Republicans, but only 13% of Democrats, believe Trump did “nothing wrong” in his dealings with Russia and its president, Vladimir Putin. What are the implications for Trump? The affair has the potential to eject Trump from office. Experienced legal observers believe that prosecutors are investigating whether Trump committed an obstruction of justice. Both Richard Nixon and Bill Clinton – the only presidents to face impeachment proceedings in the last century – were accused of obstruction of justice. But Trump’s fate is probably up to the voters. Even if strong evidence of wrongdoing by him or his cohort emerged, a Republican congressional majority would probably block any action to remove him from office. (Such an action would be a historical rarity.) What has happened so far? Former foreign policy adviser George Papadopolous pleaded guilty to perjury over his contacts with Russians linked to the Kremlin, and the president’s former campaign manager Paul Manafort and another aide face charges of money laundering. When will the inquiry come to an end? The investigations have an open timeline.

The testimony was part of the committee’s probe into Russian interference in the 2016 election and whether it is linked to Trump’s campaign. Page’s trip raised questions just as the FBI began its counterintelligence investigation into the Russian meddling in the summer of 2016, and he has offered contradictory accounts over the past year about whom he met there – at one point telling The Associated Press that he hadn’t met with Dvorkovich. But his testimony on Thursday was under oath.

Page was interviewed in March for several hours as part of the FBI probe, before special counsel Robert Mueller was appointed to take it over. Page wouldn’t answer questions about his contact with Mueller.

The House panel released the transcript from the closed-door interview as part of an agreement with Page, who had been subpoenaed by the committee in early October. Parts of the transcript are redacted.

Page told the panel he had informed some members of the Trump campaign about the Russia trip, including then-Sen. Jeff Sessions. He said he mentioned in passing to Sessions, who is now attorney general, that he was preparing to visit Russia and Sessions “had no reaction whatsoever.”

The testimony could raise more questions about the extent of Sessions’ knowledge about interactions between Trump campaign aides and Russians. Sessions recused himself from overseeing an investigation into the Trump campaign in March after acknowledging two previously undisclosed conversations with former Russian ambassador Sergey Kislyak during the campaign. Since then, Sessions has downplayed his own knowledge about communications between campaign aides and Russian officials and intermediaries.

Page has insisted – and continued to insist in the interview – that the trip was personal and not campaign related.

However, the committee produced an email during the interview in which Page wrote to campaign officials and asked them to let him know “if you have any reservations or thoughts on how you’d prefer me to focus these remarks,” apparently referring to the speech he was giving in Moscow.

He also suggested that Trump take his place at the speech – a suggestion that appeared to go nowhere.

Schiff pressured Page on what he suggested were inconsistencies in his testimony and past statements.

He noted how Page told the committee that he had met only one Russian government official during his July 2016 trip to Russia, and yet had told campaign officials in the emails afterward that he had received valuable insights from legislators and senior members of the Russian presidential administration.

“Are you being honest in your testimony?” Schiff asked. “Because it doesn’t seem possible for both to be true.”

Page said the insights he was referring to were based on materials he had read in the press, “similar to my listening to President Trump in the various speeches that I heard of his.”

In a statement prepared for the committee, Page insisted that he had no personal information that the Russian government or anyone affiliated with it played any role in the 2016 presidential campaign. He depicted himself as an unpaid member of a campaign foreign policy team that met infrequently and provided him with no direct access to Trump.

“I have never met him in my life,” Page said of Trump. “I’ve been in a lot of meetings with him, and I’ve learned a lot from him, but never actually met him face to face.”

Page said he had no direct relationship with the Russian government, though he conceded that he may have spoken with different Russian government officials over the years.

At another point in the interview, Page was asked about his relationship with George Papadopoulos, the former Trump campaign foreign policy adviser whose guilty pleas to lying to the FBI about his foreign contacts was unsealed last week.

Page said he had limited interaction with Papadopoulos, but acknowledged receiving an email in which Papadopoulos made reference to a Professor Joseph Mifsud. The unsealed court papers reference a professor who told Papadopoulos in April 2016 that the Russians had “dirt” on Democrat Hillary Clinton in the form of emails. Emails obtained by the AP show that the conversations cited in the papers were with Mifsud and another person.