Donald J. Trump appears to be giving more weight to political calculations in selecting a running mate, by picking someone who “helps you get elected.”For much of the past year, Donald J. Trump has described his perfect running mate as someone who could easily take over as commander in chief if needed and help him draw a contrast to President Biden and Vice President Kamala Harris.“It’s got to be somebody that can be a good president, which Biden doesn’t have,” Mr. Trump said in April during an interview with Hugh Hewitt, a conservative political commentator.But now, as the curtain closes...
