Gore to endorse at 8:30 p.m.

Al Gore will make his Obama endorsement tonight at 8:30 p.m. from a rally in Detroit. The endorsement will be streamed live on BarackObama.com. Gore has already penned a fundraising email for the campaign.

UPDATE: And here it is. It should be added that Gore risked nothing with this post-nomination endorsement, but it's a nice thing for Barack to have, particularly given Gore's popularity with the Democratic base (including here in "Florida, Florida, Florida" -- with props to the late Tim Russert ...) and his credibility on issues like climate change. Besides, by doing the endorsement in Michigan, Gore helped Barack's team collect maybe 20,000 more Michigan names and email addresses for the November ground game. And that's change we can believe in.