As Iowa and Vermont go, so goes the United States?

This week the Iowa Supreme Court has upheld same-sex marriage and the Vermont legislature has overturned a gubernatorial veto and recognised gay marriage. Meanwhile, the District of Columbia’s city council voted unanimously to reognise gay marriages in DC, regardless of the state in which the ceremony took place. Commenting on this Rod Dreher writes:

Gay marriage supporters will get it democratically if they can, but if they can’t, they’ll have it imposed on unwilling polities by the judiciary.

It is increasingly obvious that the US Supreme Court is going to have to rule on this matter soon. It is an untenable situation for a same-sex couple to be married in Vermont and Massachusetts and Iowa, but not in Texas, Nevada and Montana. I believe SCOTUS will constitutionalize gay marriage, and that being the case, it might be better for my side if it gets done sooner rather than later. If done sooner, there might still be enough backlash left in the American people to get a constitutional amendment passed erecting a high barrier or protection around religious institutions.