Conversation so far:
What business was Gavin Newsom involved in?
Newsom and his investors created the company PlumpJack Associates L.P.
What did the PlumpJack winery do?
PlumpJack Winery produces primarily super premium Cabernet Sauvignon and Chardonnay varietal wines from Napa Valley grapes.

Question: Was the winery successful?
Self-contained rewrite: Was the PlumpJack winery successful?