The U.S. House and Senate are both back in D.C. on Tuesday following a long summer recess, facing an overwhelming agenda of unfinished work — funding the federal government and reauthorizing major programs set to expire at the end of the month. Congressional leaders and President Joe Biden have only a few weeks to broker a short-term spending deal that can gain votes from deeply divided members of Congress or spark a partial government shutdown before a Sept. 30 deadline. Far-right House Republicans already are insistent on big cuts in spending levels at odds with bipartisan Senate legislation.