Barrack Obama is easily the weakest man to have held the office of President of the United States for the past one hundred years.
First, emerging from the back door of Air Force One at the G20 in China after local functionaries literally denied him a red carpet. Second, begging Russian President Vladimir Putin for help on Syria and getting chlorine gas. Third, being told off by the president of Turkey over American support for Kurds in Syria. Fourth, being cussed out by the president of the Philippines.
It is literally impossible to imagine any of these things happening to former presidents Ronald Reagan, George W. Bush or Richard Nixon. Jimmy Carter? Maybe one or two. But Obama managed all four. While he did cancel his meeting with the appalling Filipino president, he seemed to treat the rest as no big deal.