New Hampshire may be Nikki Haley's last chance to keep presidential hopes alive

Republican presidential candidate and former U.N. Ambassador Nikki Haley speaks during a campaign event at Exeter High School in Exeter, N.H., on Sunday. (Matt Rourke/AP)

Tuesday's New Hampshire primary could be one of the last chances for a truly competitive race for the Republican nomination. Although it is only the second primary in a months-long nominating process, Nikki Haley is now the only major candidate left challenging former President Donald Trump.

"It's now one fella and one lady left," Haley said Sunday, telling her supporters Florida Gov. Ron DeSantis had dropped out.