MSNBC's Ed Schultz went on the air to say he was wrong.
Schultz reversed his support for the proposed Keystone XL pipeline on Wednesday and said the United States shouldn't allow it to be built.
Schultz last month came out in favor of the controversial project , which would connect Alberta's tar sands oil to Gulf refineries.
After doing his research, Schultz said that he changed his mind after hearing from people who would be affected by the pipeline. He said it would be "disastrous" if the pipeline "does leak, because it is irreversible."
"Mr. President, say no to this project," Schultz said. "I turn this night on this program. I was wrong. But after researching both sides and listening to all the experts, I don't think America needs to take this risk."
Which makes one wonder, why didn't Schultz do he research before he came out in favor of the project?