McCain's choice for vice president already seems fraught with problems Wednesday, September 03, 2008 The Oregonian I n her first appearance with Republican nominee-to-be John McCain on Friday, Sarah Palin was a fresh and appealing figure. In the three days since, the doubts about her qualifications have grown. Not, it must be stressed, because of her daughter's out-of-wedlock pregnancy. Her children's lives and choices ought to be left out of the political debate. Barack Obama was exactly right when he insisted Monday that her daughter's situation "has no relevance to Gov. Palin's performance as governor or her potential performance as...