The U.S. Postal Service says it lost $2.2 billion in the three months that ended in June as the beleaguered agency — hit hard by the coronavirus pandemic — piles up financial losses that officials warn could top $20 billion over two years.

WASHINGTON — The Democratic-controlled House approved a $1.5 trillion plan July 1 to rebuild the nation’s crumbling infrastructure, pouring hundreds of billions of dollars into projects to fix roads and bridges, upgrade transit systems, expand intersta…