NEW YORK – A slim majority of Americans now support gay marriage, according to a new Washington Post-ABC News poll. The results emphasize further that the nation’s tolerant views about homosexuality are increasing and is reflected in a string of legal and legislative victories for gay rights. Five years ago, at 36%, support for gay marriage barely topped a third of all Americans. Now, 53% say gay marriage should be legal, marking the first time in Post-ABC polling that a majority has said so.