Newt Gingrich may have effectively met his Waterloo tonight. Santorum won the two Southern primaries, taking most of the momentum from Gingrich. At the same time, Romney collected almost as many delegates from all the other primaries held tonight. Romney seems to be emulating Obama’s path to the nomination. Spend money and win just enough delegates to take the nomination. Will Newt drop out? It’s not liekly. Would his dropping out help Santorum? I doubt it.