Here's an interesting internal from that new Fox News poll -- there's quite a generation gap between perceptions of Paul Ryan and Mitt Romney.
Younger voters view Ryan more positively; older voters view Romney more positively.
Under age 35: Ryan's favorable rating is -4%, while Romney's is -18%. THUS: Ryan has a 14% advantage.
Over age 65: Ryan's favorable rating is +9%, while Romney's is +13%. THUS: Romney has a 4% advantage.
Meanwhile, among more middle-aged Americans, that gap shrinks. For example, among those 55 years old and up, Romney has a +7% favorable rating, while Ryan's is +6%.
Romney and Ryan are roughly equal in all other demographics, except among independents, who give Ryan a hefty 12% edge.
It's important to note that none of this has to do with the huge gulf between young voters' perceptions of Republicans and Democrats. Why?
Well, both Ryan and Romney are Republicans; thus, it's easy to compare their favorability numbers and come to the conclusion voters are judging them on something that's not partisan.
What's the takeaway?
First, Ryan's youth truly does seem to help him with younger voters.
Second, it doesn't seem to confer much on Romney, who's still quite unpopular with the group.