Senate Majority Leader Harry Reid says he wants an apology from U.S. Rep. Bill Cassidy who says that Reid runs the Senate "like a plantation."

Reid says the comment by Cassidy is very insensitive and asks if Cassidy's been taking lessons from a former NBA owner, Donald Sterling, who made racist remarks.

Cassidy is challenging Democratic Sen. Mary Landrieu in the Nov. 4 election. The online publication Environment & Energy Daily reported his "plantation" remark on Tuesday while Cassidy was on a campaign stop in Houma.

Cassidy is defending the remark, saying that Reid runs the Senate dictatorially by blocking votes he doesn't want, and he calls any other interpretation of his remarks "a false controversy."