FLASHBACK: Jeb said he'd win South Carolina — 'take it to the bank'
© Greg Nash

Jeb Bush was so confident of winning South Carolina that as recently as September he told people to take his victory in that state "to the bank."

“I’m going to win South Carolina, take it to the bank,” Bush told reporters in late September, according to The Charleston Post and Courier.

But on Saturday night, Bush not only failed to win but looks set to finish a distant fourth or fifth. The disappointing result will amplify the pressure on Bush to shut down his campaign and clear the way for Marco RubioMarco Antonio RubioRubio: McCabe 'should've been allowed to finish through the weekend' For Tillerson, bucking Trump became a job-killer At least six dead after pedestrian bridge collapses on cars in Florida MORE to be the GOP's establishment choice to take on Donald TrumpDonald John TrumpKoch-backed group launches six-figure ad buy against Heitkamp Anti-abortion Dem wins primary fight Lipinski holds slim lead in tough Illinois primary fight MORE and Ted CruzRafael (Ted) Edward CruzCruz says Cambridge Analytica assured him its practices were legal Dem battling Cruz in Texas: ‘I can understand how people think this is crazy’ Overnight Tech: Facebook faces crisis over Cambridge Analytica data | Lawmakers demand answers | What to watch for next | Day one of AT&T's merger trial | Self-driving Uber car kills pedestrian MORE.

South Carolina was not supposed to turn out this way for the former Florida governor. Bush allies frequently refer to the Palmetto State as "Bush country" and remember the state fondly for delivering a decisive win in the 2000 primaries that helped George W. Bush overcome an insurgent John McCainJohn Sidney McCainTrump congratulated Putin after his national security team told him not to: report Trump faces backlash after congratulating Putin on election win McCain rips Trump's congratulatory call to Putin as an insult to Russian people MORE.

Bush threw everything he had at South Carolina. His brother, who has not stumped for anyone since leaving the presidency, hit the campaign trail this week as did Bush's other family members, including his mother, Barbara.

The Bush campaign and his super-PAC also spent more money than any other candidate in South Carolina, won the endorsement of South Carolina Sen. Lindsey GrahamLindsey Olin GrahamSteyer brings his push to impeach Trump to town halls across the nation Trump formally sends Pompeo nomination to Senate GOP leaders to Trump: Leave Mueller alone MORE and invested time and resources into courting the state's substantial veterans community.

But on Saturday night, Bush was swept away by Trump, Cruz and — most galling for the Bush forces — his former protégé in Florida, Rubio. With some 20 percent of the vote counted, Bush risks finishing in single digits.