"If the truth were known, many, many senators would be very envious, as I am, and I would even think the presiding officer, about that hair of Ben Nelson's," Reid said on the Senate floor.
"I mean, he has hair like a 15-year-old."
In 2007, Nelson's hair got some attention after it went from a helmet of gray one day to a brunet the next. Nelson knew it didn't look so natural, and he appreciated that Sen. Susan Collins (R-Maine) didn't point out the obvious after they had a long conversation.
“Let me just thank you for not saying anything about my hair,” Nelson said at the time.
Collins doubled over in laughter.