>>People really overrate a president's influence. You can't hold him responsible for everything that happens in the federal government. He had nothing to do with any of those things.
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>Sure, you absolutely do. Everyone at the top of whatever food chain there is, is ultimately responsible for everything that happens on their watch.

That's true, John
That certainly applies to the military, national security, foreign affairs and to legislation.

His influence on the economy and jobs, however, is not nearly as great as the influence exerted by the Fed.
The president does appoint the Fed chairman, but Ben Bernanke, who presided over the Fed during most of Obama's term, was appointed by GW Bush, so the responsibility chain is murky.