BREAKING: Al Gore to endorse Obama tonight

Vice President Al Gore just sent out this message to his list of supporters:

Dear Friend,

A few hours from now I will step on stage in Detroit, Michigan to announce my support for Senator Barack Obama. From now through Election Day, I intend to do whatever I can to make sure he is elected President of the United States.

Over the next four years, we are going to face many difficult challenges -- including bringing our troops home from Iraq, fixing our economy, and solving the climate crisis. Barack Obama is clearly the candidate best able to solve these problems and bring change to America.

This moment and this election are too important to let pass without taking action.

That's why I am asking you to join me in showing your support by making a contribution to this campaign today:

Over the past 18 months, Barack Obama has united a movement. He knows change does not come from 1600 Pennsylvania Avenue or Capitol Hill. It begins when people stand up and take action.

With the help of millions of supporters like you, Barack Obama will bring the change we so desperately need in order to solve our country's most pressing problems.

If you've already contributed to this campaign, I ask that you consider making another contribution right now. If you haven't, please take the next step and own a piece of this campaign today.

On the issues that matter most, Barack Obama is clearly the right choice to lead our nation.

We have a lot of work to do in the next few months to elect Barack Obama president, and it begins by making a contribution to this campaign today.

Thank you for joining me,

Al Gore

Gore will endorse Obama tonight at 5:30 PM Pacific Time. Tune in on CNN or MSNBC if you can. The speech will also be streamed live at barackobama.com.