Beto O’Rourke joined the crowded group of Democratic Party 2020 hopefuls, announcing Thursday morning that he is running for president.

“This is a defining moment of truth for this country and for every single one of us,” the 46-year-old former Texas congressman said in a video announcing his candidacy. “The challenges that we face right now, the interconnected crises in our economy, our democracy and our climate have never been greater.”