It would appear that the cause of John Boehners penchant for crying (as well as his penchant for conservatism), has been solved:
http://www.politicsdaily.com/2010/12/15/john-boehners-crying-is-he-drinking-too-much/
http://www.politicsdaily.com/2010/12/15/john-boehners-crying-is-he-drinking-too-much/