John McCain’s parting gift to America is forgiveness

After covering the White House for 15 years — and closely observing the presidency for twice that long — I never thought I’d say this, but the only thing better than having one former U.S. president speak at John McCain’s memorial service was having two.
George W. Bush and Barack Obama, one a Republican, the other a Democrat, are the only two men who ever bested John McCain at the ballot box. Although they outpolled McCain in the presidential elections of 2000 and 2008, t