Here are some of the biggest mousetraps Obama scattered across the White House floor on his way out:
Betraying Israel at the United Nations: Obama's refusal to block a United Nations vote against Israel, his administration's shadowy machinations to bring that ugly motion to the floor, and Secretary of State John Kerry's long-winded broadside against Israel will leave President Trump with a massive political crisis in the Middle East, and quite possibly a security crisis, if terror groups and their "political wings" are emboldened by the rebuke of Israel.

Obama's Israel maneuver also damages American credibility, teaching would-be allies that the United States is not the best friend to have. America's erstwhile battlefield allies in Syria can teach the same lesson, assuming any of them are left alive to take the podium. This comes at the very moment aspiring hegemons in China and Russia are showing their allies how Beijing and Moscow will go to the mat for them.