US Attorney General Jeff Sessions had two conversations with the Russian ambassador to the United States during the presidential campaign season last year, a revelation that immediately fuelled calls for him to recuse himself from a Justice Department investigation into Russian interference in the presidential election.
Last month President Donald Trump's embattled national security advisor Michael Flynn was forced to resign amid allegations that he discussed US sanctions against Russia with its envoy before Trump's inauguration (See: Trump's security advisor Michael Flynn quits over Russian links).
Sessions, an early supporter of President Donald Trump and a policy adviser to the Republican candidate, did not disclose those communications at his confirmation hearing in January when asked what he would do if ''anyone affiliated'' with the campaign had been in contact with the Russian government. Sessions answered then that he had not had communication with the Russians.
Justice Department spokeswoman Sarah Isgur Flores said Wednesday night that ''there was absolutely nothing misleading about his answer.''
That statement did not satisfy Democrats who even before Wednesday had sought his recusal from the ongoing federal investigation and had raised questions about whether he could properly oversee it.
Democratic House minority leader Nancy Pelosi, a California Democrat, accused Sessions of ''lying under oath'' and demanded that he resign. Other Democrats called on him to step aside from the investigation.
In a statement Wednesday night, Sessions said, ''I never met with any Russian officials to discuss issues of the campaign. I have no idea what this allegation is about. It is false.''
Sessions had more than 25 conversations with foreign ambassadors last year in his role as a senior member of the Senate Armed Services Committee, and had two separate interactions with the Russian ambassador, Sergey Kislyak, the department said.
One was a visit in September in his capacity as a senator, similar to meetings with envoys from Britain, China, Germany and other nations.
The other occurred in a group setting following a Heritage Foundation speech that Sessions gave during the summer, when several ambassadors - including the Russian ambassador - approached Sessions after the talk as he was leaving the stage.
Revelations of the contact, first reported by The Washington Post, triggered calls from members of Congress for Sessions to back out of any involvement in the FBI's probe.
''If reports are accurate that Attorney General Sessions - a prominent surrogate for Donald Trump - met with Ambassador Kislyak during the campaign, and failed to disclose this fact during his confirmation, it is essential that he recuse himself from any role in the investigation of Trump campaign ties to the Russians,'' said Adam Schiff of California, the top Democrat on the House Intelligence Committee.
''This is not even a close call; it is a must,'' he said.
Asked by reporters Monday about the prospect of a recusal, Sessions said, ''I would recuse myself from anything that I should recuse myself on.''
At the confirmation hearing in January, Senator Al Franken of Minnesota asked Sessions about allegations of contact between Russia and Trump aides during the 2016 election.
He asked Sessions what he would do if there was evidence that anyone from the Trump campaign had been in touch with the Russian government during the campaign.
Sessions replied he was ''unaware of those activities.''
Then he added, ''I have been called a surrogate at a time or two in that campaign and I didn't have, did not have communications with the Russians, and I'm unable to comment on it.''
Flores, the Justice Department spokeswoman, said that response was not misleading.
''He was asked during the hearing about communications between Russia and the Trump campaign - not about meetings he took as a senator and a member of the Armed Services Committee,'' she said in a statement.
Franken, in a statement Wednesday night, said he was troubled that the new attorney general's response to his question was ''at best, misleading''. He said he planned to press Sessions on his contact with Russia.
''It's clearer than ever now that the attorney general cannot, in good faith, oversee an investigation at the Department of Justice and the FBI of the Trump-Russia connection, and he must recuse himself immediately,'' Franken said.
Separately in January, Senator Patrick Leahy, a Judiciary Committee Democrat, asked Sessions in a written questionnaire whether ''he had been in contact with anyone connected to any part of the Russian government about the 2016 election, either before or after election day''.
Sessions replied simply, ''No.''