John McCain, who numerically clinched the Republican nomination this week, now appears to have the field entirely to himself.
Mike Huckabee withdrew on Tuesday night, after McCain swept the four primaries to reach the 1,191 delegates needed. Now, Ron Paul, the last remaining candidate, is telling supporters that he can't achieve victory "in the conventional sense."
Still, he urged supporters to help him rack up as many delegates as possible in the remaining primaries and caucuses to help further his message of liberty.
"We must remember elections are short-term efforts, revolutions are long-term projects," he said in a lengthy video posted late Thursday on his website.
Paul, who held on to his Texas congressional seat on Tuesday, became an Internet money machine, with his supporters raising far more money for him than several better-known candidates. He also won quite a bit of attention during debates as the only Republican candidate opposed to the Iraq war.
But Paul's campaign failed to translate that success and notoriety into votes, only reaching double digits in a couple of contests.
Still, Paul said in the video, his success "surpassed all my expectations."
"Much good has been accomplished this year," he said.