Attorney General Jeff Sessions publicly and repeatedly clashed with Democratic Sen. Al Franken on Wednesday after being pressed over the accuracy of past testimony regarding his communications with the Russians during the 2016 presidential campaign.

In one of several testy exchanges Sessions had with Democratic senators during testimony before the Senate Judiciary Committee, Franken, D-Minn., grilled the attorney general and suggested his explanations have changed.

“The goal post has been moved. First it was ‘I did not have communications with Russians’ – which was not true. Then it was ‘I never met with Russians to discuss any political campaign’ –  which may or may not be true. Now it is ‘I did not discuss interference in the campaign’ which further narrows your initial blanket denial about meeting with the Russians,” Franken said.

A visibly frustrated Sessions responded that, “Without hesitation, I conducted no improper discussions with Russians at any time regarding a campaign or any other item facing this country.”

Franken attempted to begin a second round of questioning before Sessions could respond in full to the first, but Sessions fired back