Funding included in President Joe Biden’s massive social spending package would allow the U.S. Postal Service to fuel 70 percent of its massive mail delivery fleet with battery-electric power by the end of the decade, according to the agency, a major win for Biden and Postmaster General Louis DeJoy, who lobbied Congress for the money. The $1.75 trillion legislation unveiled in the House on Thursday includes roughly $6 billion for the mail agency to buy trucks from Oshkosh Defense, which won a pr