President Obama used his weekly address to appeal to families counting their blessings on Thanksgiving, reminding Americans that the holiday isn’t only about turkey but a tribute to the deep immigration history that led to the nation’s founding. In 1620, a small band of pilgrims came to this continent, refugees who had fled persecution and violence in their native land, Obama says. Nearly 400 years later, we remember their part in the American story and we honor the men and women who helped them in their time of need. The Obama administration said Wednesday that states can't legally block the...