Backstop Trigger News Today

Our congressional correspondent phil mattingly is joining us from capitol hill. phil, its over one important hurdle, but still not yet a done deal. >> reporter: no question about it. wolf, think back to the day over the course of one hour, the senate tax proposal went from on the verge of completely stalling out to a clear path to the senate floor and potentially passes. what was the missing ingredient that came into play during that hour? it was the president. if you talk to republican aides an...