U.S. presidential candidate Jill Stein has launched an online campaign in the hopes of funding a recount of vote totals in three key battleground states.

Stein ran for the Green Party in an election that saw Republican Donald Trump win the presidency over Democratic candidate Hillary Clinton. Clinton won the popular vote during the Nov. 8 election, however, Trump garnered the necessary amount of support from the electoral colleges.

On Wednesday, Stein launched an online fundraising campaign to pay for recount requests in Michigan, Pennsylvania and Wisconsin. It quickly gained steam. By Wednesday night, the campaign had already raised and surpassed the $2 million required to file for a recount in Wisconsin.

A statement on Stein’s website said that she launched the effort to “demand recounts in these three states where the data suggests a significant need to verify machine-counted vote totals.”

The fundraising campaign comes as a group of election lawyers call on Clinton’s campaign to call for a recount of the vote in the three states, which have traditionally voted Democratic in recent presidential elections. Trump won Wisconsin and Pennsylvania by slim margins, and had a small lead in Michigan.

Stein statement said election integrity experts had “independently identified” Michigan, Pennsylvania and Wisconsin as states where “statistical anomalies” raised concerns.

There is no evidence, however, that election voting machines were compromised, or that any kind of cyberattack affected voting results.

The statement went on to say that the Green Party campaign’s effort to recount votes “is not intended to help Hillary Clinton.

“These recounts are part of an election integrity movement to attempt to shine a light on just how untrustworthy the U.S. election system is.”

The Clinton campaign has yet to issue a formal response on the matter.

Over Twitter on Thursday, Stein ratcheted up the campaign, urging people to volunteer to help “monitor the recount process” in all three states.

With files from The Associated Press