Nikki Haley is trounced by the 'none of these candidates' option in Nevada's Republican primary

Nikki Haley faces a significant defeat in Nevada's Republican primary as voters overwhelmingly choose "none of these candidates."

Nikki Haley was swamped in Nevada's symbolic Republican presidential primary as GOP voters resoundingly picked the “none of these candidates” option on the ballot in a repudiation of the former UN ambassador who is the last remaining major rival to front-runner Donald Trump.

Mr. Trump didn’t compete in Tuesday's primary, which doesn’t award any delegates needed to win the GOP nomination. The former President is instead focused on caucuses that will be held on Thursday and will help him move closer to becoming the Republican standard-bearer.

That leaves the results on Tuesday as technically meaningless in the Republican race. But they still amount to an embarrassment for Ms. Haley, who has sought to position herself as a candidate who can genuinely compete against Mr. Trump. Instead, she became the first presidential candidate from either party to lose a race to “none of these candidates” since that option was introduced in Nevada in 1975.

Ms. Haley had said beforehand she was going to “focus on the States that are fair” and did not campaign in the western State in the weeks leading up to the caucuses, spending time instead in her home State, South Carolina, before its February 24 primary. Her campaign wrote off the results with a reference to Nevada’s famous casino industry.

“Even Donald Trump knows that when you play penny slots the house wins,” spokeswoman Olivia Perez-Cubas said. “We did not bother to play a game rigged for Trump. We’re full steam ahead in South Carolina and beyond.” Mr. Trump joked on his social media network, “Watch, she'll soon claim Victory!”

Nevada Gov. Joe Lombardo, a Republican, had announced beforehand that he would vote for “none of these candidates” on Tuesday. Several Republicans interviewed heading to the polls said they intended to do the same.

Washoe County Republican Party Chair Bruce Parks, who pushed for the GOP to hold caucuses, said that he told voters who called his office — and Trump supporters — to participate in the primary by voting for “none of these candidates” over Haley.