Via Business Insider: A new NBC News/Wall Street Journal national poll of Republican voters has Newt Gingrich expanding his lead over Mitt Romney — gaining the support of 40 percent of GOPers. The full horse-race: Gingrich 40 Romney 23 Paul 9 Bachmann 8 Perry 6 Huntsman 5 Santorum 3 According to the poll, in a … Continue reading NBC/WSJ National Poll: Gingirch 40%, Romney 23% . . . Ron Paul 9%…