1. ISIS. No matter what you think of the wars of the Bush era, they were essentially over before Obama took office. He only had to do the mop up and withdrawal. He hastily left a vacuum into which ISIS/ISIL/IS poured. Then he underestimated them more than once—first calling them the JV team, then calling them contained.
2. Iran. The other Arab/Muslim countries should be able to work out a solution to the Syrian refugee problem, and join forces to defeat ISIS (they are afraid too—different branches of Islam). But because Obama made a deal with the devil (Iran), they don’t trust him and won’t work with him.
3. Trump. Probably the worst “Republican” candidate of an otherwise terrific bench, any one of which could run circles around Hillary Clinton, is Donald Trump. But Americans are so fed up with our juvenile, lead from behind, hate America first, know-nothing president they are falling for Trump’s glib, bombastic “just bomb ‘em” and “close the mosques” temper tantrums.