This one is easy: if Trump "runs" for a third term and wins, he stays in office Putin-style, and no one can say **** to stop it; and if Obama runs for a third term against him and wins, the Trump government will refuse to vacate because they'll claim Obama's victory violates the Constitution, every single constitutional scholar and jurist will agree, an actual constitutional crisis will ensue, Trump stays in office Putin-style, and no one can say **** to stop it.