From Real Clear Politics:
Bush Still Winning the Money Game, BUT
Just as important as polls and debates is the money game. The last candidate filing was on July 31 and expect big changes when the next quarterly report is filed. But as of July 31 Jeb Bush was way ahead in overall money which includes PACS but Ted Cruz actually beat Bush in direct contributions to his campaign which is more desirable than PAC spending.
Too early to say whether Trump and Carson downturns are more than just a blip. Stay tuned. The Iowa Caucus is still three months away (primary calendar)!