Republicans are still searching for a candidate

With the Iowa caucus just two weeks away, the presidential race is clearly heating up. But for the first time in half of a century, no vice president or incumbent is running. As the Democratic race is continuing to tighten, the Republican race is constantly changing with no clear winner in view.
According to a Wall Street Journal/NBC News poll, Rudy Giuliani and Mitt Romney are tied for first place with 20% (which shows Giuliani's great fall from his original 10% advantage over Romney just six weeks ago due to negative press regarding his personal life and business transactions). Mike Huckabee follows with 17%, which is not much less considering that margin of error is 3.1% and in early november he only had a single digit percentage of support. Following Huckabee is John McCain with 14% and then Fred Thompson at 11%.
However, because there is no front runner, the race is becoming more unpredictable. For example, despite Romney's higher ranking in the polls, he has fallen behind Huckabee in the Iowa nominating contest.
While this confusion may easily be a result of Bush's current low approval rating, it may also be a result of the current coalitions that are known to define the Republican party finally not being able to work together any more. While the party combining social, economical, and foreigh policy conservatives may have been able to function properly under Reagan, it is apparent that it no longer can.
This next election will no doubt be a turning point in American politics. But it may be moreso than we are expecting. There is so much interparty conflict within the Republican party that maybe a split by one of the leading coalitions could happen changing the Republican party as we know it. Although this would be a huge ordeal, it seems to be more and more possible as this election plays out.