Facebook cofounder Dustin Moskovitz and his wife Cari Tuna have announced they will give $20 million to back Hillary Clinton and other Democratic candidates. In a post on Medium, the couple wrote: "We believe [Donald Trump and the GOP's] positions, especially on immigration, which purport to improve the lives of Americans, would in practice hurt citizens and noncitizens alike. In contrast, the Democratic Party, and Hillary Clinton in particular, is running on a vision of optimism, pragmatism, inclusiveness and mutual benefit."