Former President Donald Trump has won the Republican primary in New Hampshire on Tuesday, which has created new uncertainty for the future of former South Carolina Gov. Nikki Haley’s campaign.

This primary was widely viewed as a make-or-break moment for her candidacy after Trump’s decisive victory in Iowa last week.

The race was called for Trump around 8 p.m., with the former president leading Haley 54% to 45% with around 18% of votes counted after polls began closing at 7 p.m. Tuesday.

Trump’s win in New Hampshire comes after he won the Iowa caucuses with a historic 51% of votes last week, prompting Florida Gov. Ron DeSantis and biotech entrepreneur Vivek Ramaswamy to drop out of the race and endorse Trump.

Haley remains Trump’s sole competitor and has expressed plans to stay in the contest at least until the primary in her home state of South Carolina.

Trump predicted a “big loss” for Haley on Tuesday and said he doesn’t care if she stays in the race past the New Hampshire primary, telling reporters he believes Haley voters will back him in the general election if he clinches the nomination.

Republicans have coalesced behind Trump in the days after the Iowa caucuses, with his former competitors in the race—Ramaswamy, South Dakota Gov. Doug Burgum and Sen. Tim Scott (R-S.C.)—campaigning alongside him in New Hampshire.

The contest was seen as a crucial test for the viability of Haley’s campaign. Haley posted her strongest poll numbers in the state, bolstered by the significant share of independents who said they would cast their ballots for her over Trump, according to preliminary polls.

New Hampshire Gov. Chris Sununu also endorsed Haley ahead of the contest, though he has said he would back Trump if he’s the eventual nominee, as has Haley.

Overall, this primary win for Trump has injected fresh uncertainty into the Republican race for the presidential nomination, with Nikki Haley’s future prospects being put into question.

It remains to be seen how this will impact the upcoming primaries and the eventual nominee for the Republican Party.