(SOUNDBITE) (English) U.S. SPECIAL COUNSEL ROBERT MUELLER, SAYING: "We are formally closing the special counsel's office." Nearly four months after ending his probe of President Donald Trump and Russia's role in the 2016 election, on Wednesday Special Counsel Robert Mueller will finally - and reluctantly - testify on Capitol Hill.
It's the moment Democrats have been waiting for as they weigh whether to impeach Trump for his attempts to derail Mueller's probe.
(SOUNDBITE) (English) REP.
JERRY NADLER, (D) NEW YORK, SAYING: "I think just the fact, just if he says what was in the report, and says it to the American people so they hear it, that will be very important." One question important to Democrats: whether Mueller was instructed to END his probe by Attorney General William Barr when he took over the Justice Department.
Also of prime interest, whether Mueller will want to correct the record about his report's findings after Barr issued a 4-page summary of his report.
Mueller had said Barr's summary "did not fully capture the context, nature and substance" of his nearly two-year investigation.
The probe did not establish the Trump campaign colluded with Russia but left unanswered whether Mueller was convinced there was no conspiracy, or if he was simply unable to collect enough evidence to make that call.
And finally, Mueller is sure to be asked whether he agrees with this: SOUNDBITE) (English) ATTORNEY GENERAL WILLIAM BARR, SAYING: "Nonetheless, the White House fully cooperated with the Special Counsel's investigation." (SOUNDBITE) (English) U.S. PRESIDENT DONALD TRUMP, SAYING: "There's no nothing.
They're wasting their time." Mueller's report failed to clear Trump of obstruction of justice and in fact cited 10 instances in which Trump sought to impede the probe.
(SOUNDBITE) (English) U.S. SPECIAL COUNSEL ROBERT MUELLER, SAYING: "If we had had confidence that the president clearly did not commit a crime, we would have said so." Despite Democrats' enthusiasm for questioning Mueller, the Justice Department in a letter on Monday told Mueller to limit his testimony to the public report, saying matters within the scope of his probe were covered by executive privilege.