Nader, who ran for president as the Green Party candidate in 2000 and as an independent in 2004, told Politico that Obama was worse than George W. Bush.
Obama is "more aggressive, more illegal worldwide" than Bush, the six-time presidential candidate said. The president is a "war criminal," he said, who "thinks the world is his plate, that national sovereignties mean nothing, drones can go anywhere."
Obama's success has been "below average," Nader said, "because he raised expectation levels. What expectation level did George W. Bush raise?"
However, Nader said he liked some programs pushed by Obama, such as the president's focus on renewable energy and his thwarted jobs bill.
Nader said he preferred Obama over Romney, the Republican candidate, because Obama is "the more effective evil" who has "legitimized the lawless war-mongering and militarism abroad of George W. Bush."
Romney, Nader charged, is "basically a corporation running for president masquerading as a human being."
Nader, who twice ran for president under the Green Party banner, blasted the dominant parties. The Democratic Party is "sick" and "decaying," he said, while the Republican Party is "the cruelest, most ignorant, most anti-worker, most war-mongering, most Wall Street-indentured Republican Party in its history, since the 1850s."
Nader isn't running for president this year and hinted he may never run again.