Lopez Obrador narrowly lost this country's presidency to Calderon--or vice versa, if you ask Lopez Obrador
.... 
Andres Manuel Lopez Obrador, narrowly lost the July 2 election... [DOC] [TLE] Than Elections: How Democracies Transfer Power - Photos - US ... [PAR] President-elect John F. Kennedy (left) shakes hands with Vice President ... 
November 14, 1960, six days after Kennedy narrowly defeated Nixon.