VICTOR DAVIS HANSON: Obama’s Legacy: The Rise Of Donald Trump.

Without policy achievements to hang his hat on, Obama’s rhetoric will be how he’s remembered – and the results have been ugly. On his recent Asian tour, President Obama characterized his fellow Americans (the most productive workers in the world) as “lazy.” In fact, he went on to deride Americans for a list of supposed transgressions ranging from the Vietnam War to environmental desecration to the 19th century treatment of Native Americans. “If you’re in the United States,” the president said, “sometimes you can feel lazy and think we’re so big we don’t have to really know anything about other people.”

The attack on supposedly insular Americans was somewhat bizarre, given that Obama himself knows no foreign languages. He often seems confused about even basic world geography. (His birthplace of Hawaii is not “Asia,” Austrians do not speak “Austrian,” and the Falkland Islands are not the Maldives).

Obama’s sense of history is equally weak. Contrary to his past remarks, the Islamic world did not spark either the Western Renaissance or the Enlightenment. Cordoba was not, as he once suggested, an Islamic center of “tolerance” during the Spanish Inquisition; in fact, its Muslim population had been expelled during the early Reconquista over two centuries earlier.

In another eerie ditto of his infamous 2008 attack on the supposedly intolerant Pennsylvania “clingers,” Obama returned to his theme that ignorant Americans “typically” become xenophobic and racist: “Typically, when people feel stressed, they turn on others who don’t look like them.” (“Typically” is not a good Obama word to use in the context of racial relations, since he once dubbed his own grandmother a “typical white person.”) Too often Obama has gratuitously aroused racial animosities with inflammatory rhetoric such as “punish our enemies,” or injected himself into the middle of hot-button controversies like the Trayvon Martin case, the Henry Louis Gates melodrama, and the “hands up, don’t shoot” Ferguson mayhem.

Most recently, Obama seemed to praise backup 49ers quarterback and multimillionaire Colin Kaepernick for his refusal to stand during the National Anthem, empathizing with Kaepernick’s claims of endemic American racism. What is going on in Obama’s home stretch? Apparently Obama is veering even further to the left, in hopes of establishing a rhetorical progressive legacy in lieu of any lasting legislative or foreign-policy achievement.

Obama opened the way for Trump. He’s like Rick Moranis in Ghostbusters, or something. And even Ghostbusters was ruined on his watch. . . .