WASHINGTON — Attorney general nominee Loretta Lynch won two key Republican endorsements Thursday en route to likely confirmation as the first black woman in the nation’s top law enforcement job. “I believe she’s not only qualified but exceptionally well-qualified, and a very good person, to boot,” Sen. Orrin Hatch of Utah, a senior Republican on the Senate Judiciary Committee, declared from the dais on the second day of Lynch’s confirmation hearing to replace Eric Holder. Another …