Washington state’s Democratic Governor Jay Inslee announced today he will run for president in 2020. In a video posted to YouTube, Inslee said he would make the issue of battling climate change his top priority.

Gov. Jay Inslee: “We’re the first generation to feel the sting of climate change, and we’re the last that can do something about it. We went to the moon and created technologies that have changed the world. Our country’s next mission must be to rise up to the most urgent challenge of our time: defeating climate change.”

Inslee will formally announce his candidacy today at a solar panel company in Seattle.