WASHINGTON -- Robert S. Mueller III wanted to keep a low profile.
The former special counsel -- who famously avoided cameras for nearly two years when he led the Russia investigation -- made clear he did not want to testify to Congress beyond what he wrote in his 448-page report.
"It is important that the office's written work speak for itself," he told reporters in May. "The report is my testimony."
Not quite. Mueller is scheduled to appear Wednesday for three hours in the House Judiciary Committee and then for two hours in the House Intelligence Committee. His testimony will be televised, tweeted and almost certainly contentious.
It's hardly the first such hearing, however. Here's a rundown of others in the Trump era -- and what to expect on Wednesday.
--Comey says Trump lied to justify firing him
Former FBI Director James B. Comey was blunt when he testified to the Senate Intelligence Committee in June 2017, a month after President Donald Trump had abruptly fired him -- sparking concerns that the president was trying to obstruct the burgeoning investigation into Russian interference in the 2016 election.
Comey confirmed media reports that Trump had asked him to pledge his loyalty to the president during a private Oval Office meeting -- and that Trump had asked him to go easy on former national security advisor Michael Flynn, who was under FBI investigation.
In sometimes riveting testimony, Comey gave lawmakers -- and those who watched the gavel-to-gavel coverage -- an inside glimpse into his turbulent relationship with the new president.
He said he had kept detailed written notes of their conversations because he was "honestly concerned" that Trump might lie about what they discussed.