A uniquely toxic figure: Donald Trump faces extra hurdles as Congress returns

Donald Trump, increasingly isolated in the White House, faces a daunting task to get his presidency back on track when Congress returns on Tuesday from a summer ending all too soon.Senators and Representatives could be forgiven for dragging their feet with a gloomy back-to-school air as they grapple with the debt limit, major tax reform, government funding to avoid a shutdown and, most urgently, recovery efforts after Hurricane Harvey in Texas.The hurricane has handed Trump a random, unexpected