Comedian Bill Maher at home with Chico, a rescue dog with one eye, in Los Angeles. Maher is a rebel with a cause: He actually cares about the things he complains about, so there’s heart behind the cynicism, Maureen Dowd writes. Photograph: Balazs Gardi/The New York Times Back in 2013, I got a call from Bill Maher. He was being hit with a lawsuit by Donald Trump and thought it would be “comedy gold” for my column. The host of HBO’s Real Time With Bill Maher had joked that Trump was the love child of a human woman and an...