(CNN) Democratic Sen. Kamala Harris accused Attorney General Bill Barr on Thursday of stalling and refusing to answer her questions about the White House during a Senate hearing because he knew doing so would open himself up to perjury allegations.

Harris, along with many of her Democratic colleagues, have demanded Barr resign from office and that the Justice Department's inspector general investigate Barr's handling of the special counsel Robert Mueller's investigation and report.

However, she has not called for Barr's impeachment.

During Wednesday's Senate Judiciary Committee hearing, Barr was unable to tell Harris whether President Donald Trump or anyone at the White House had asked or suggested he open an investigation into anyone.

"He did not answer the question, and I'm sure he didn't because he knew he was under oath, and he knew that he could potentially expose himself to perjury if he didn't answer honestly," Harris told CNN's Alisyn Camerota on "New Day" Thursday.

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