A group of election lawyers and data experts have asked Hillary Clinton's campaign to call for a recount of the vote totals in three battleground states - Wisconsin, Michigan and Pennsylvania - to ensure that a cyberattack was not committed to manipulate the totals.
There is no evidence that the results were hacked or that electronic voting machines were compromised.
The Clinton campaign on Wednesday did not respond to a request for comment as to whether it would petition for a recount before the three states' fast-approaching deadlines to ask for one.
President-elect Donald Trump won Wisconsin and Pennsylvania by razor-thin margins and has a small lead in Michigan. All three states had been reliably Democratic in recent presidential elections.
The group, led by voting-rights attorney John Bonifaz and J. Alex Halderman, the director of the University of Michigan Center for Computer Security and Society, contacted the Clinton campaign this week.
That call, which was first reported by New York Magazine, raised the possibility that Clinton may have received fewer votes than expected in some counties that rely on electronic voting machines.
But Halderman, in an article posted on Medium on Wednesday, stressed that the group has no evidence of a cyberattack or voting irregularities. He urged that a recount be ordered just to eliminate the possibility.
"The only way to know whether a cyberattack changed the result is to closely examine the available physical evidence," Halderman wrote.
Recounts, which are often costly and time-intensive efforts, would likely only be initiated if the Clinton camp pushed for one, though Wisconsin independently announced that it would conduct an audit of its vote.
Many pre-election polls showed Clinton with slight leads. While advocating for the recounts, Halderman writes that "the most likely explanation" for Trump's surprise win "is that the polls were systematically wrong".
