Next Tuesday night Republicans and Democrats hold precinct caucuses to elect delegates to this summer's party conventions. This week Minnesota Public Radio is profiling the candidates vying for their endorsement for governor. The race is drawing attention outside of Minnesota because the race includes several sons of famous fathers. None has a bigger name, or is taking a bigger gamble now, than Attorney General Skip Humphrey. Minnesota Public Radio's Karen Louise Boothe has the first in a series of profiles of gubernatorial candidates.