THE NATION: If the story is true, John Edwards is finished as a contender for the 2008 Democratic presidential nomination. The story is the National Enquirer cover piece — which will go on the racks at the supermarkets and drug stores of Iowa, New Hampshire and the other 48 states Wednesday morning — that claims the former senator from North Carolina is the father of a soon-to-be-born “love child.”The article claims Edwards, who has long burnished an image as the consummate family man and whose wife Elizabeth is a key player in his campaign, had an 18-month affair with female […]