Despite dropping out over a month ago, former U.N. Ambassador Nikki Haley is continuing to garner hundreds of thousands of votes in noncompetitive Republican primaries against former President Donald Trump.

Most recently, Haley won almost 17% of Pennsylvania's primary vote on Tuesday, or 1 in 6 votes, to Trump's 83% -- more than 157,000 votes, or about twice the 80,500-vote margin by which Democrat Joe Biden beat Trump in Pennsylvania in 2020. Haley has yet to endorse Trump after a vicious primary fight that left her the last candidate standing between the former president and his third GOP nomination for the presidency.

For Biden, his campaign argues, this trend marks an opportunity for him as he pursues a second term in the White House in what polls suggest will be another tight election in the swing states that will decide the Electoral College.

“For months, Donald Trump told Nikki Haley voters that he didn’t want their support, and they heard him loud and clear — that’s why more than 157,000 of them voted against him in an uncontested primary,” said Biden campaign communications director Michael Tyler in a statement, connecting Biden’s values to his Scranton, Pa., hometown in contrast to Trump’s “Mar-a-Lago values,” dubbed so for his Florida estate. “Pennsylvania deserves better than a candidate who’s too preoccupied with his own legal problems to talk to them face to face, and their votes prove that they know it.”

The Biden campaign is back this up with a six-figure digital ad buy targeting those Haley voters and other Republicans and independents less inclined to support Trump in suburban zip codes where Haley performed better against her old boss than expected. It will run on Facebook, Instagram, YouTube, streaming services and other online platforms, the campaign said.

The ad, which debuted last month and has been running in swing states across the country, highlights about a dozen insults of Haley and insistences that he doesn’t need her supporters by Trump.

“I don’t need votes. We have all the votes we need,” Trump says in one clip from the primary campaign. In another clip, he says “I’m not sure we need too many” when asked by a reporter how he will bring her voters back to his camp.

In January, Trump wrote on social media, referring to Haley by his favorite derogatory nickname, that anyone who “makes a ‘Contribution’ to Birdbrain, from this moment forth, will be permanently barred from the MAGA camp.” 

“We don’t want them, and will not accept them,” he added.

Biden himself has not made direct appeals to Haley supporters since a statement he released the night she dropped out — nor has he made efforts to woo other anti-Trump candidates like New Jersey Gov. Chris Christie, who garnered little support during the primary and said this week that he has yet to receive outreach from the president. But he frequently appeals to voters of all party identification who may not be married to voting for Trump in November. He often differentiates Republican voters from “MAGA Republicans” — Republicans loyal to Trump’s “Make America Great Again” movement.

“MAGA Republicans want billionaires to pay less in taxes, want seniors to work longer before they can retire on Social Security benefits, and they want to cut Medicare,” Biden said at a campaign event in Scranton last week. “I got a better idea. Let’s protect Social Security and Medicare and make the very wealthy begin to pay their fair share in high taxes.”

“And, by the way, whether you’re liberal, conservative, Democrat, Republican, or independent — whatever you are, think about it.  We’re not asking much. Just asking for just basic fairness,” he added.

More than a million votes have been counted for Haley in Republican primaries and caucuses since she dropped out, though some of those may have been cast early or by mail before she ended her campaign. During that period, Trump received about 5.8 million votes.

Over the same period, more than 600,000 ballots were counted for candidates other than Joe Biden in Democratic primaries and caucuses, while about 4.6 million were for Biden.

Haley has largely kept out of the public eye since dropping out in early March. Earlier this month, the Hudson Institute, a conservative Washington think tank, announced she would be joining the organization in a leadership role.

“It is now up to Donald Trump to earn the votes of those in our party and beyond it who did not support him. And I hope he does that,” Haley said in her March 6 speech announcing her decision to drop out of the Republican primary. “At its best, politics is about bringing people into your cause, not turning them away. And our conservative cause badly needs more people. This is now his time for choosing.”