Mueller is bound to testify -- here are some of the most important questions to ask him
Robert Mueller testifies before Congress (screengrab)

On Sunday, House Judiciary Chairman Adam Schiff (D-CA) appeared on "This Week" with George Stephanopoulos to assure viewers that Special Counsel Robert Mueller will testify to Congress.

“The American people have a right to hear what the man who did the investigation has to say, and we now know we certainly can’t rely on the attorney general who misrepresented his conclusions,” Schiff said. “So he is going to testify.”

Writing in Rolling Stone, politics editor Andy Kroll wondered what that would look like.

"If and when Mueller does testify, members of Congress could press him on a number of lingering questions that emerged from his voluminous report," he writes.

"Why did he decline to recommend indicting Trump for committing obstruction of justice? Was it because he didn’t think the president had potentially committed a crime, or was he adhering to the Justice Department’s legal opinion that a sitting president cannot be indicted?" Kroll wonders.

"Why did the many contacts between Russian individuals and organizations and the Trump campaign not rise to the level of criminal conspiracy?"

"Why did Paul Manafort allegedly giving campaign polling data to his business partner Konstantin Kilimnik, a man with ties to Russian intelligence, not constitute conspiracy? Why did one of his attorneys say the Manafort-Kilimnik episode went 'very much to the heart of what the special counsel’s office is investigating'? The administration has said Trump fully cooperated with the investigation. Is that accurate?"

Read the report here.