BOULDER — President Barack Obama dropped into town Tuesday, swung by the Sink to pick up a pizza, and he tested out a young entrepreneur’s phone-controlled ball on University Hill before imparting a few words of wisdom to 11,000 screaming students at the nearby Coors Event Center.
“I heard a rumor that Robert Redford used to work there,” the nation’s commander-in-chief said of the Sink, reminding everyone to “always be nice to your server, you never know where they’ll end up.”
Obama sported a white button-down shirt, striped tie and dark pants that survived an overly excited young woman’s accidental spilling of purple yogurt on them outside of the Sink minutes earlier. The president was relaxed and in high spirits, joking with the crowd and boasting a big, beaming smile.
But his tone grew more serious as he launched into the speech he came to deliver: Keeping the subsidized Stafford loans from doubling fro…