Facebook co-founder Dustin Moskovitz — a newcomer to politics as of last month — will donate $15 million more, including $5 million to the largest super PAC supporting Hillary Clinton, Priorities USA Action, in the wake of the latest news about Donald Trump. Moskovitz said $8 million of his new donation money will go to political groups, with $5 million headed to Priorities, and $7 million to nonpartisan groups dedicated to voter registration and get-out-the-vote efforts.