(she might have to concede Nevada to Trump)
She would have to. Trump is running in the caucus and so gets all the delegates. Haley is running in the primary instead, which means she’ll get none, but is best placed to get the first “win” there (I’m not sure how valuable this will be, but the primary is held first).
Now that Pence has dropped out, her only opponents there are some no-names, John A. Castro (the “sue Trump off the ballot” guy) and Tim Scott.
"None of These Candidates" will likely win the Nevada primary.
