The Kenyan president wants a new constitution, one that opens the door to abortion on demand. President Obama is willing to use U.S. taxpayer dollars to persuade voters to approve the updated governing document, which would loosen regulations designed to protect the unborn, establish Muslim family courts and create a right to homosexual marriage. It's not unusual that Kenyan President Mwai Kibaki would see enactment of the provisions as a "government project," but Mr. Obama is on shaky legal ground when he commits U.S. government resources to it. On Aug. 4, Kenya's 12.3 million registered voters will be asked a...