According to the source, he did so because he is “disgusted” with the way Republicans are handling matters in Washington, including the recent payroll tax cut deal. But the move also sets Trump up for a potential third-party run for president — a possibility he began talking about almost as soon as he told his fans in May he wasn’t running.

Trump has sought to reach out to the group, Americans Elect, an online, independent presidential nominating organization that has already made it on the ballot in several states, including California.