U.S. Sens. Mark R. Warner and Tim Kaine joined other Senators in sending a letter to U.S. Secretary of Agriculture Thomas Vilsack urging him to update standards for commercial dog breeding facilities regulated under the Animal Welfare Act . The Senators call on Secretary Vilsack to implement the strong standards for veterinary care, housing, and breeding of dogs suggested in the Puppy Protection Act, legislation that Sens. Warner and Kaine have consistently cosponsored.