White House hopeful Mitt Romney renewed his attacks on Barack Obama's foreign policies Saturday, blaming the president's "passivity and denial" for sewing chaos in the Middle East.

According to AFP, The Republican nominee took Obama to task for saying unrest and violence were "bumps in the road," adding that such a "casual assessment of shocking events reveals that the president really doesn't understand the gravity of the challenges that we face in the broader Middle East."

In his weekly podcast just 38 days before Americans vote on November 6, Romney made the case that Obama's 2008 victory was based not on his record of accomplishment but on his arguments that a more humble posture would command greater respect abroad and boost the US economy and moral standing.

"Four years later, every one of these arguments has been proven wrong," Romney said, citing the violent unrest coursing through the Middle East that led to the death of four Americans, including the US ambassador to Libya.