"There is no question that Russia has been pushed into drawing a line in Syria against American aggression," he wrote for New Eastern Outlook.
The Republicans also do not share Obama's foreign policy style, but they think that the US president is not doing "enough killing and certainly not in enough places," Duff added.
What is worrying is that Obama's "frightening policies," according to the analyst, represent the "moderate" point of view while Republican candidates would wish to send American forces across Africa and the Middle East, as well as spread "American hegemony in the Far East."
Current trends in America's foreign policy indicate that history could repeat itself, Duff asserted. George W. Bush's brother Jeb is running for president. Other presidential candidates, including Donald Trump, are also "looking for a world war," Duff claimed.
They all, according to the analyst, have one thing in common – they want to spark a "war with Russia [and establish] a worldwide police state with universal surveillance."
"Thus we have Obama and Kerry one moment spouting the most obvious and clumsy lies and following genocidal policies, particularly toward Iran, Syria, Russia and China while only a short time later coming to the bargaining table with competent and rational initiatives. This is pure schizophrenia," the analyst asserted, offering the Iran nuclear deal as an example of a positive initiative.