New Hampshire is make or break for Haley
What really matters in presidential primaries is not the polls or the votes but the delegates. Specifically, the number of votes each candidate gets in each state's nominating contest will determine the number of delegates allocated to vote for them at the meeting of the Republican National Convention in July. A candidate needs to win a majority — 1,215 — of all available delegates (2,429) in order to win the nomination. In Iowa last week, Trump won 20 delegates, DeSantis won 9, Haley won 8 and Ramaswamy, 3. And 22 more delegates are up for grabs in New Hampshire today.
538 has put together a detailed set of benchmarks that estimate how many delegates each candidate needs from each state in order to be on track to win a majority nationwide. These benchmarks take into account how well each candidate is polling in every state and make projections of support in states without polls. From there, we calculate estimated delegate hauls for each candidate in each state, project how many they'd win if the election were held today, and then adjust their support nationwide until each is just barely winning the delegate majority. Numbers from those scenarios get published as our delegate benchmarks.
Because Haley is so popular with the types of voters who are more heavily represented in New Hampshire than in most other states, our benchmark model stipulates she needs to win a lot of delegates today to win the nomination: 22, to be exact — or every delegate in New Hampshire. But since the state allocates delegates proportionally, that is very unlikely to happen even if she wins more votes than Trump. Meanwhile Trump only needs eight delegates to be on track to victory.
Today's contest is a make-or-break moment for Haley. If she ends up winning the primary and can take home, say, 15 delegates, she may get a big enough bounce in the polls to make up the ground in later-voting states. But it is foolish to hinge one's presidential hopes on an "if."
—G. Elliott Morris, 538