Sen. Dianne Feinstein on Wednesday said her vote to confirm President Trump’s attorney general nominee, William Barr, hinges on assurances that he will ensure that special counsel Robert Mueller’s report on the Russia investigation be made public.

“This is a big report, and the public needs to see it,” said Feinstein, the ranking Democrat on the Senate Judiciary Committee.

“I am hopeful that that report will be made public and my vote depends on that. The attorney general must understand the importance of this to the nation as a whole, to us as a Congress, as well to every American,” she added.

“It’s essential that Congress and the American people know what is in the Mueller report,” she said during the second day of hearings for Barr.

Barr, who served as attorney general for President George H.W. Bush from 1991 to 1993, was grilled on Tuesday about the report and whether he would make it public.

He told senators that he would allow Mueller to complete his investigation into Russian meddling in the 2016 election and whether any Trump campaign associates colluded.

Asked about releasing Mueller’s report to Congress, Barr said he would if it was “consistent with the regulations and the law.”

Feinstein said Barr’s answer gave her pause.

“I was concerned about his equivocation regarding the report,” she said.

Feinstein said Barr’s answers about providing the report to Congress at the conclusion of Mueller’s probe were “confusing,” noting that he talked about writing his own report and keeping Mueller’s confidential.