With Donald Trump appearing to have won the South Carolina republican primary, how will this impact the field of candidates ?

Here's the thing with Trump - he's got all of the voters he is going to get. As the other candidates drop out, his numbers don't go up, they stay the same. That's ok for now, but as Carson, Kaisich, and Bush drop out, their votes are going to Cruz and Rubio - Trump may win these early primaries, but he doesn't have the votes to go the distance and he doesn't have a wide enough platform to pick up any more. Hell, I know that there are a lot of moderate Republicans that would rather vote for a Dem than for Trump because of how extreme he is. That is his downfall.

Why so many voters want Trump to be the Republican candidate for president is an indication we are in serious trouble as a nation ..IMHO

It narrowed the field by one (Bush). Don't know why Carson is hanging around. He is just wasting money. With the field narrowing down, the establishment needs to get down to a couple, probably Cruz and Rubio, or Trump is going to run away with it. I would really like to see Kasich do better. He has done pretty good in his political career and I like how he is staying positive. All of negativity during an election really irks me.

I have been saying since Nov. that it was going to come down to Trump, Cruz and Rubio. With Bush dropping out today, how long until the others see the writing on the wall?
One thing to remember is that there has been no candidate that has won both NH and SC that has NOT gone on to become the GOP nominee.

Bush drops out fairly quick (maybe after Nevada), Kasich stays in a little longer awaiting the Midwest primaries (but gets pressure from the GOP establishment), and Carson stays in to keep selling more books. It's essentially a three-horse race now.

Trump is going to win handily. Cruz is his own worst enemy by being too hard line conservative. He won his seat in congress almost by default, with only 631,812 votes in the 2012 primary from a voting pool of 13 million plus registered voters because of a poor turnout of 8.5%. The general election was a no brainer against Dem. Paul Sadler who was called the “sacrificial lamb” in the election because the minority party was not even considered consequential. His policies appeal primarily to right wing extremists and he will not crossover with moderates. Rubio is an empty suit who changes his position to please whomever he is speaking to. This media rhetoric about him being the only one who has a chance in the general election is desperate because just the opposite is true. Trump appeals to some hard line conservatives because they are sick of the left, right wing moderates like him, left wing moderates like him, and disillusioned left wingers like him.
Anyone here that believes Hillary is a better option than Trump needs their head checked. Hillary will finish America off while her and her husband fill their coffers even further. She panders to the poor and minorities just as President Obama did and just like him she will do nothing to change anything.

Well Jeb Bush has already thrown in the towel. I think Dr. Carson is next. I just hope Gov. Kasich can last long enough to catch some steam.

It will be a three way race to convention.

I think that they will hang in and wait to see what happens on Super Tuesday. Shit, there is more steam to be had! (I meant hot air)