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The hearings are expected to end Friday with about two dozen outside witnesses scheduled to testify, including John Dean, President Richard Nixon’s White House counsel.
The nominee appeared to say little Wednesday to assuage Democrats' concerns, particularly about his position on executive power, declining to weigh in on whether a president can be subpoenaed, fire a prosecutor who was investigating him or legally pardon himself, among other questions.
Kavanaugh has been interrupted repeatedly by protesters in the room since the hearings began on Tuesday. Grassley said that 70 people were arrested on the chaotic first day of hearings.
President Donald Trump said Wednesday he was "happy with the Kavanaugh hearings."
"I watched today for a little while. I saw some incredible answers to very complex questions," the president told reporters at a White House event.