After eight years of having a Chicagoan in the Oval Office — one who would parachute in and visit the city from time to time — one wonders whether Barack Obama's successor Donald Trump will ever pay a visit during his tenure. It's not like we're not on the sitting president's mind. His Twitter account offers plenty of criticism. But the question comes to mind with former presidents Bill Clinton and George W. Bush scheduled to speak at a downtown health care event this week.