Using multicolored flow charts in an attempt to simplify complex transactions, prosecutors tried to show that Mr. Manafort concealed more than $60 million in income in 31 foreign bank accounts opened in the names of shell companies.

The money came from Ukrainian oligarchs who paid Mr. Manafort to boost the political career of Viktor F. Yanukovych, a pro-Russian politician who, with Mr. Manafort’s help was elected president of Ukraine in 2010.

"That's not the correct way to say it," Mueller said. "We did not reach a determination as to whether the president committed a crime."

That statement was more in line with his report, and with his earlier opening statement to the Judiciary Committee, where he said, "Based on Justice Department policy and principles of fairness, we decided we would not make a determination as to whether the President committed a crime. That was our decision then and it remains our decision today."