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. This year's race for Governor is already shaping up as the most wide-open in years. It's a race without any clear favorites -- a fact Joanne Benson is well aware of. Benson may be Arne Carlson's Lieutenant Governor, but she's hardly his heir apparent. Minnesota Public Radio's Minnesota Public Radio's Martin Kaste has this profile of the candidates.