Folks,

Sean isn’t a career politician. He’s a scientist and a former clean energy entrepreneur -- and one of Washington’s biggest nerds.

Sean is leading the fight to tackle the climate crisis while there’s still time.

In his first term, he co-sponsored the first major piece of climate legislation to pass the House in a decade and helped develop the first Congressional Climate Action Framework in US history -- including 8 of his bills to put the country on a path to net-zero greenhouse gas emissions by 2050!

Sean knows that we must meet this crisis with the urgency it demands, and he’s got the background to get it done -- but it’s made him a top target for outside groups who want to kill climate progress. Stand with Sean: chip in to his people-powered campaign today to keep him fighting on our behalf in Washington >>

To save our planet, we can’t let what is politically possible get in the way of what is scientifically necessary.

We need bold action now,

Team Casten