Obama passed the best affordable healthcare plan he could.
On abortion rights, he was no more left than Hillary. On the bailouts, he was openly in support of the Bush bailout plan even before the election. On war, Obama was openly in favor of the continuation of the war in Afghanistan and harder military policy against several countries, some of which even McCain wasn't onboard on.
But hey, whatever helps fuel your delusional "If only candidates were more left, then they would DEFINITELY win in a landslide!" outlook.