A new NBC/Wall Street Journal poll says President Obama's announcement of support for gay marriage hasn't made a difference at all. This is your daily reminder that polls are stupid:

In the poll, a combined 17 percent says it makes them "much more likely" or "somewhat more likely" they will vote for him. That's compared with a combined 20 percent who say the announcement will make them more likely to vote for Mitt Romney, who opposes gay marriage.

Perhaps more importantly, 62 percent say the president's support for gay marriage doesn't make a difference in their vote — including 75 percent of independents, 76 percent of moderates, 81 percent of African Americans, and 65 percent of residents in the Midwest who say that.

Okay, but. This was never going to be an issue that would pull people to President Obama's side. The thing this poll doesn't account for is the thousands of people who spoke up to show gratitude to the president following his announcement. That enthusiasm and personal engagement is the sort of energy that drives elections, and it's the sort of energy that Mitt Romney can't seem to muster.