WASHINGTON (Reuters) -U.S. President Joe Biden, buoyed by midterm elections in which his fellow Democrats fared better than expected, said on Wednesday that Election Day on Tuesday was good for democracy but the results showed that Americans remained frustrated. “It was a good day, I think, for democracy,” Biden told reporters at the White House. White House officials have expressed a sense of vindication that Democrats did better than expected after Biden focused his campaign pitch largely on preventing threats to U.S. democracy, securing abortion rights and extolling his economic policies. R…