Yet another new poll, this one released Tuesday morning by CNN/Opinion Research, shows majority approval in the United States for same-sex marriage. This is the fourth major nationwide poll in less than a year to find a majority of Americans support marriage for same-gender couples. Previously, an ABC News/Washington Post poll found 53% support for same-sex marriage, and an AP/Roper poll, along with a CNN poll last summer, both found 52% support for marriage equality.

Today's CNN/Opinion Research poll found 51% of Americans think marriages between gay and lesbian couples should be recognized by the law as valid, with the same rights as traditional marriages, while 47% thought they should not.