There are many explanations for the strong result Democrats got in the election yesterday. Focusing on New Hampshire, there is a neat correlation between support for the REAL ID Act and defeat at the polls yesterday.

Jeb Bradley was one of “several Washington officials … urging state senators to support Real ID” when the state legislature was considering a bill to reject it. He was defeated by Carol Shea-Porter, a surprise victor who enjoyed little help from national Democrats. Here’s Shea-Porter speaking at an anti-REAL-ID rally.

Representing the Second District, Charlie Bass was an original co-sponsor of the REAL ID Act, and he touted that fact on his Web site. His replacement is Paul Hodes. Hodes is not a full-throated critic of REAL ID, but he did tell AP, “I do not favor creating a new central federal database using the permanent images of these documents.… A piece of paper is not the solution to securing our borders from terrorism. We need to better coordinate our existing law enforcement databases and watch lists.”

The Republican leadership of the state senate gutted and killed New Hampshire’s bill to reject REAL ID earlier this year. In a debate Monday, Republican Senate President Ted Gatsas said “There’s no question REAL ID makes sense.” Ted Gatsas will no longer be Senate President. Democrats took control of the New Hampshire State Senate for only the second time since 1911. Gatsas’ re-election bid was too close to call overnight, but it now appears he narrowly beat back his Democratic opponent.

As to REAL ID opponents, Governor John Lynch was re-elected. Voters gave control of the New Hampshire Executive Council (an additional legislative body that would have to approve the acceptance of federal funds for implementing REAL ID) to Democrats for good measure.

Of course, many things influence the outcome of elections, but REAL ID has been fiercely debated in New Hampshire this year. It’s not a coincidence that the party on the wrong side of the national ID issue was voted out of power.