Republicans have been touting the front page of today's Des Moines Register, which contrasts a sunny Mitt Romney with a sharp President Obama: 

Is Romney's momentum real, or is his campaign bluffing? The Fix investigates:

What we do know is that Romney and Obama are in a dead heat nationally and the once-clear edge the incumbent held in a series of swing states has narrowed considerably. What we don’t know is whether Romney has peaked or not.