Less than half an hour before he made the announcement, Scott’s campaign sent out a fundraising email with the subject line “One Last Chance.”

Scott qualified much later than his opponents for the Republican National Committee’s third debate — struggling to reach the required 70,000 donor threshold. And he remained at risk of failing to qualify for the next debate, which had even higher donor and polling criteria. The polling threshold for the next debate, on Dec. 6 in Alabama, is 6 percent, a mark Scott has not been hitting.

The campaign had been spending significantly more than it had brought in as well. It spent $12.4 million in the third fundraising quarter, while raising $4.6 million.