Rand Paul has now suspended his 2016 presidential campaign.
He was seen yesterday at a victory party in Des Moines and told friends he was not travelling to New Hampshire.
It is expected that he will now concentrate on being re-elected to the Senate for a second term.
His decision to drop out now further narrows the Republican field after the departure of governor Mike Huckabee.
Paul was trailing in the latest New Hampshire polls with only 2.8% support.
Rand Paul only achieved 4.5% of the votes after the Iowa Caucus on Monday.
Rand Paul released a statement saying: “It’s been an incredible honor to run a principled campaign for the White House,” Paul said in the statement. “Today, I will end where I began, ready and willing to fight for the cause of Liberty.”
10 candidates now remain in the presidential race.