The Republican presidential race is tightening, but former Louisiana Gov. Bobby Jindal apparently isn’t ready to endorse a candidate yet.

A source close to Jindal told The Advocate that Jindal definitely won’t endorse before the New Hampshire primary on Tuesday, and it’s unclear when or if he will beyond that.

Jindal, who suspended his own presidential campaign in November, spent $1.4 million on his unsuccessful run for the GOP nomination. An independent group supporting him spent another $4.4 million.

A recent analysis from National Journal found that Jindal among the most frequent travelers to Iowa, which held its caucuses this week. U.S. Sen. Ted Cruz won that state’s Republican contest, followed by Donald Trump and U.S. Sen. Marco Rubio.

Several others who have dropped their campaigns have endorsed other candidates.

Former Texas Gov. Rick Perry, who bowed out before Jindal, has endorsed Cruz. U.S. Sen. Lindsey Graham of South Carolina is backing former Florida Gov. Jeb Bush. Former U.S. Sen. Rick Santorum of Pennsylvania and former New York Gov. George Pataki have come out in support of Rubio.

U.S. Sen. Rand Paul of Kentucky reportedly has said he doesn’t plan to endorse in the primary, and Wisconsin Gov. Scott Walker and former Arkansas Gov. Mike Huckabee haven’t endorsed anyone yet.

Jindal, when he left the race, declined to endorse a GOP presidential candidate but said he would support whomever wins before adding that he doesn’t believe that the nominee will be Trump, who hefrequently criticized on the campaign trail.

Candidates still left in the running for the GOP presidential nomination include Trump, Cruz, Rubio, Bush, Dr. Ben Carson, New Jersey Gov. Chris Christie, businesswoman Carly Fiorina, Ohio Gov. Jim Kasich and former Virginia Gov. Jim Gilmore.