Can Americans still have a sensible and friendly political discussion across the partisan divide? The answer is yes, and we prove it every week. Julie Roginsky, a Democrat, and Mike DuHaime, a Republican, are consultants who have worked on opposite teams for their entire careers yet have remained friends. Here, they discuss the week’s events with editorial page editor Tom Moran. Q. Joe Biden came out swinging at his State of the Union speech Thursday. Did he soothe fears over his age? Julie: I loved it. There will be a thousand op-eds this week about how Biden was not “presidential,” about the…