Reuters: Six cash-strapped Republican White House hopefuls face tipping point

"They are living on the edge," said Lawrence Noble, former general counsel to the Federal Election Commission."We are getting close to the time when a lot of these candidates are going to say, 'We can't do it, it can't be done,'" said Noble, now a senior attorney with the Campaign Legal Center, a campaign finance non-profit. ...

“The Republican field is way too large, there simply isn’t enough money to go around,” said Noble.