Buddy Roemer has announced that he is launching an exploratory committee to consider a run for the presidency. He has also announced a campaign different from the campaign of every other candidate. A president, Roemer says, "must be free to lead": free of commitments to anything save the principles he commits to. So Roemer's campaign will take no PAC money. It will take no more than $100 in contributions from any individual. And everyone who contributes anything regardless of how small will be disclosed. This should be emulated across the board.