Newly surfaced emails reveal problems going back to 2007 with the ATF office in Phoenix and guns ”walking” across the U.S.-Mexico border. The emails about the Bush-era problems were given to Congress by the Justice Department as part of the congressional investigation into the ATF’s botched Obama-era firearms trafficking case, dubbed “Fast and Furious.” The documents show that the special agent in charge of the ATF’s Phoenix office, William Newell, was involved in a 2007 incident that resulted in guns slipping into Mexico and, later, part of Fast and Furious. Newell was the special agent in charge of the Phoenix...