Sen. Dianne Feinstein (D., Calif.) said Sunday that she too would have a "queasy feeling" if she received the request that former FBI Director James Comey got from then-Attorney General Loretta Lynch to call the Hillary Clinton email investigation "a matter."

She added the Judiciary Committee should investigate.

CNN's Brianna Keilar asked Feinstein on Sunday about Comey's testimony on Thursday to the Senate Intelligence Committee, where Comey said that Lynch had directed him to not call the probe into Clinton's use of a private email server an "investigation," but instead, "a matter." Comey said that Lynch's directions gave him "a queasy feeling."

Keilar asked Feinstein about Lynch's role in the FBI's investigation. Feinstein did call for further investigation into the matter.

"He felt clearly that Loretta Lynch was giving cover to the Clinton campaign," Keilar said. "Was she?

"I can't answer that. I would have a queasy feeling too, though, to be candid with you," Feinstein said. "I think we need to know more about that and there's only one way to know about it and that's to have the Judiciary Committee take a look at that."

UPDATE: 10:59 A.M.: This article was updated to note Feinstein said the Judiciary Committee should look into the matter.