Since there are only three Republican presidential candidates who are currently polling above 10% and therefore have a realistic chance of winning the nomination — Trump, Cruz, and Rubio — why would any donor in his or her right mind continue to pour money into any of the losing single-digit candidates’ coffers?
It would make some sense for wealthy individuals to gamble millions of dollars in Las Vegas casinos, since there is a chance that they could win and walk away with more money. However, there is nothing to gain from betting millions on virtually mathematically eliminated losers like Chris Christie, Ron Paul, and the other dregs of the Republican race.
Yet the fact that such losers still remain in the race proves that there are in fact idiotic Republican donors eager to continue to throw money down the drain.
For the candidates still holding office and already bought, continued support at some level insures getting what they paid for from the current office
For Jeb and Carly and maybe Dr Ben, there is no such advantage