Story highlights Experts alerted the Clinton campaign earlier this week to possible hacking in Wisconsin

Green Party presidential hopeful Jill Stein has led efforts for an investigation

Washington (CNN) Green Party officials filed Friday for a recount in Wisconsin, following reports of voting discrepancies, and were seeking a deeper investigation into the election results, which handed the state to Donald Trump two weeks ago.

Wisconsin Green Party co-chairman George Martin said that they were seeking a "reconciliation of paper records" -- a request that would go one step further than a simple recount, spurring, he said, an investigation into the integrity of the state's voting system.

"This is a process, a first step to examine whether our electoral democracy is working," Martin said.

The announcement came as Green Party candidate Jill Stein's Thanksgiving fundraising blitz passed $5 million. The money is well beyond the $2 million mark the Green Party initially set, and Wisconsin party officials said that any additional money not used for the recount would be used to train Green Party candidates for local office. The goal as of Friday was to raise $7 million.

"We don't know, and we think the forensic computer experts have raised serious questions. What we do know is that this was a hack-riddled election, we saw hacks into voter databases, into party databases, into individual email accounts. We know that there were attempts made broadly on state voter databases and we know that we have an election system that relies a computer system that is wide open to hacks," Stein told CNN's John Berman Thursday. "It's extremely vulnerable, Americans deserve to have confidence in our vote."

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