Paul Ryan faces off against President Barack Obama for the first time in his role as the newly tapped GOP vice presidential contender.
Mitt Romney will campaign in Florida on Monday. But he's dispatched his running mate to Iowa on the same day Obama launches a bus tour across the state.
Ryan, a Wisconsin congressman, is to meet voters at the Iowa state fair.
The day's events may help determine whether conservative excitement for the Wisconsin congressman -- and his controversial budget plans -- will overshadow Romney's own economic message.
Democrats hope so.
The Obama campaign has been attacking the Republican budget architect's plans to transform Medicare and re-shape the nation's tax system.
Romney's already moving to distance himself from his running mate's plan.