At one point, in 1999, the dispute grew so contentious that the inspector general's office threatened to go to court.
Communications between the government and Andersen grew particularly contentious in the hours leading up to the indictment.
Wednesday's public meeting grew contentious, and Mr. Silver raised his voice in exasperation several times.
There does not appear to be much chance that the negotiations for either player will grow contentious.
As the abortion debate grew increasingly contentious, extreme pro-life activists began using violence to disrupt women's health clinics across the country.
The issue was a divorce that was growing more contentious.
But the question of who owns those ideas has grown contentious.
He said today's meeting grew contentious when he raised his objections.
The 50 states are divided almost in half on a question that has grown increasingly contentious in the age of Internet advertising and sales.
The issue is growing more contentious.