Sen. McCain says Obama has failed to properly exert America 's might . However , Mitchell said the United States should have done more to help the Syrian opposition without sending U.S. troops . President Obama presents a broad vision designed in part to rebuff critics . Obama has come under criticism for what opponents say is a passive approach . He says global leadership requires military might , alliances and diplomatic tools .
Sen. McCain says Obama has failed to properly exert America 's might . President Obama presents a broad vision designed in part to rebuff critics . Obama has come under criticism for what opponents say is a passive approach . He says global leadership requires military might , alliances and diplomatic tools .