Among Republicans, there's a similar divide as among the public as a whole:
Looking at age, 38% of likely Republican caucus-goers under 30 years old and 22% of those 30 to 44 years old back Paul. Among those 45 to 59 years old, it’s Romney with 23% and Santorum and Paul who each receive 19%. Romney — 29% — does the best among those who are 60 and older.
The Dish 