The first four maps show why the next six weeks could be key for marriage equality. But the fifth shows why there's still a long way to go.
Here's where things start: Just more than 10 percent of the country lives in a state where same-sex couples can marry.
But, voters in Maine, Maryland and Washington will vote on marriage in November. And, the Supreme Court could decide to let a lower court ruling stand finding California's Proposition 8 unconstitutional.
If all 4 of those states get marriage equality, more than a quarter of the country would live in a place where same-sex couples can marry.
