(NBC NEWS) Same-sex marriage proponents are gathering steam.

Recent high profile rulings on gay marriage tell only part of the story about the avalanche of lawsuits working their way through state and federal courts, challenging laws that ban or restrict same-sex marriages.

Cases are now pending in all but eight of the 33 states that forbid gay couples to marry. Most have been filed since the U.S. Supreme Court ruled last June that the federal government cannot refuse to recognize same-sex marriage in the states where it’s legal.

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