The former South Carolina governor and United Nations ambassador was the last major candidate to challenge former President Donald Trump for the GOP nomination.
History shows that when the major party nominees for president have not cleared the field of notable challengers before summer, they tend to lose in the fall.
In a conversation with a few reporters Friday, Haley highlighted her background in accounting, saying, "The accountant in me stretches and stretches and stretches those dollars."
The influential Koch network of conservative megadonors announced it will no longer be spending its resources on Haley's presidential bid, saying no outside group can "widen her path to victory."
Former South Carolina Gov. Nikki Haley is struggling in her home state's Republican primary polls, but residents say she has broad support in her hometown of Bamberg.
Nikki Haley says inflammatory comments Donald Trump made about Black people Friday is more proof he will hurt the GOP in the November general election.
The Haley campaign told reporters Friday that she is continuing on, arguing that doing so is not just about the nomination but making a case that Trump will struggle in a general election.
West Virginia Democratic Sen. Joe Manchin talks to NPR's Michel Martin about Joe Biden, Donald Trump and Nikki Haley, and his decisions against another run for the Senate or a new bid for president.
In an interview with NPR, Nikki Haley says in a rematch between President Biden and former President Donald Trump, Biden is a bigger threat. But she's hoping she presents voters with another option.