The American economy is growing at its fastest clip in a quarter-century, yet it remains far from normal, with some workers and small-business owners facing increasingly tough times while others thrive. That divergence poses a challenge to President Biden, who has promoted the nation’s economic recovery as a selling point in his quest to win support for a multitrillion-dollar spending agenda that could cement his legacy. A summer that many business owners and consumers had hoped would bring a return to prepandemic activity has delivered waves of disappointment in key areas. Restaurants are short on staff and long on …
