In a tight presidential race that both candidates say will turn on the economy, majorities of American voters believe neither has a plan to improve things.  

A new Fox News poll released Wednesday shows that by a 14 percentage-point margin, more voters think Barack Obama (41 percent) has a clear plan to improve the economy than think Mitt Romney does (27 percent).  Still, a 53-percent majority says Obama doesn't have a plan, and a 55-percent majority says Romney doesn't.  

Romney has yet to seal the deal with all his party faithful, as less than half of Republicans (49 percent) think the former Massachusetts governor has a plan to help the economy.  In contrast, nearly three quarters (72 percent) of Democrats say Obama does.

Shortly after taking office Obama said it was up to him to improve the economy, and if he didn't do so in three years he would be a one-term president.