Republican presidential candidate Ron Paul told supporters Saturday that the momentum of his campaign, and cause, will continue.

“This is the beginning of a long, hard slog,” Paul said. Paul placed fourth in the South Carolina primary, behind Newt Gingrich, Mitt Romney and Rick Santorum.

During his speech in Columbia, Paul vowed to continue campaigning, noting that only 37 delegates–a tiny fraction of what is needed to win the party nomination–had been awarded so far.