House Intelligence Committee Chairman Adam Schiff said that if special counsel Robert Mueller's full report isn't made public by Attorney General William Barr, his committee could call Mueller to testify about his findings.
"We are going to get to the bottom of this," Schiff told ABC's "This Week." "We are going to share this information with the public."
"Well we will obviously subpoena the report, we will bring Bob Mueller in to testify before Congress, we will take it to court if necessary," Schiff said. "And in the end, I think the department understands they're going to have to make this public. I think Barr will ultimately understand that as well."
Schiff warned Barr that if he tried "to withhold, to try to bury any part of this report, that will be his legacy, and it will be a tarnished legacy."
"So I think there’ll be immense pressure not only on the department, but on the attorney general to be forthcoming," he said.
STEPHANOPOULOS: As you know, William Barr may have quite a different view of what those regulations require than you do. They could allow him to release the entire report, but under Justice Department regulations, officials have said that if you decline to prosecute someone, then the underlying evidence should not be released.
SCHIFF: But George, the department has violated that policy repeatedly and extendedly, you know, to a -- to a great extent over the last two years. And in fact, I’ve had this conversation with Rod Rosenstein and others down at the Justice Department as they turned over thousands and thousands of pages of discovery in the Clinton e-mail investigation and there was no indictment in that investigation, that this was a new precedent they were setting and they were going to have to live by this precedent whether it was a Congress controlled by the Democrats or Republicans.
So they're going to have to abide by that. And I think also, quite separate apart from the precedent they’ve already set, is the intense public need to know here, which I think overrides any other consideration.
STEPHANOPOULOS: You say the Justice Department’s going to have to live by that precedent, but what if they don't? What if they say no, we’re not going to release the underlying evidence. What options do you have?
SCHIFF: Well we will obviously subpoena the report, we will bring Bob Mueller in to testify before Congress, we will take it to court if necessary. And in the end, I think the department understands they're going to have to make this public. I think Barr will ultimately understand that as well. Barr comes into this job with two strikes against him. He applied for the job by be demonstrating a bias against the Mueller investigation. Indeed that's part of the reason he was hired. He’s also not been willing to commit to following the advice of the ethics lawyers. Indeed that was part of the reason he was hired.
If he were try to withhold, to try to bury any part of this report, that will be his legacy and it will be a tarnished legacy. So I think there’ll be immense pressure not only on the department, but on the attorney general to be forthcoming.
STEPHANOPOULOS: You're talking about public pressure. Are you prepared to take the administration to court?
SCHIFF: Absolutely. We are going to get to the bottom of this. We are going to share this information with the public and if the president is serious about all of his claims of exoneration, then he should welcome the publication of this report.
STEPHANOPOULOS: The president has said no collusion many times, as I said. You said many months ago that you’ve already developed evidence of collusion. We haven't seen that from Robert Mueller. Do you have any evidence at all that the president colluded?
SCHIFF: George, there’s ample evidence of collusion of the campaign and it's very much in the public record, and it's everything from what we have seen recently about Paul Manafort meeting with someone linked to Russian intelligence and sharing polling data, and not top line data, not this is why we think Trump is going to win data, but raw data, complicated data. We’ve seen evidence of Roger Stone in communication with Wikileaks, we’ve seen the president's son having a secret meeting at Trump Tower that was presented to him as part of the Russian government's effort to help the Trump campaign, his acceptance of that help, his interest in getting that.
All of this is evidence of collusion and there’s much, much more. Whether that will amount to a criminal conspiracy that can be proved beyond a reasonable doubt, we'll have to wait for Bob Mueller to tell us. But to -- to not see what is plainly in front of us means you -- you basically don't want to see the evidence of collusion because it is quite abundant.