La. heads to runoff, Warner struggles in Va.

10:17 PM ET Tue, 4 Nov 2014

CNBC's John Harwood reports Republicans have gained a fourth seat in their effort to re-take the Senate. The race in Louisiana is going to a December runoff, and Democratic Senator Mark Warner (D-VA) is locked in a too-close-to-call race with his opponent, former Republican Chairman Ed Gillespie.