Jill Stein is continuing her push to investigate the integrity of the U.S. electoral system, with lawyers for the former Green Party presidential candidate asking Attorney General Loretta Lynch to probe the issue.
"We write to urge the Department of Justice to launch an investigation into the integrity of our nation’s election system generally, and our nation’s voting machines specifically, based on the information we discovered in the course of this representation," reads the letter from Stein's counsel dated Friday.
"The attempted recount process has uncovered that voting machines relied on in these states and across the country are prone to human and machine error, especially in under-resourced black and brown communities, and vulnerable to tampering and hacking," the letter continued.
"The recount also found that the states' efforts to protect their systems may be insufficient, particularly in low-income communities and communities of color. Each of these grave concerns warrants federal intervention," it added.
Stein raised millions after the November election for a recount in Michigan, Wisconsin and Pennsylvania, traditionally blue states where Republican Donald Trump pulled out slim wins over Democratic Hillary Clinton.
The Green Party recount efforts in Wisconsin and Pennsylvania were shut down by courts while a recount in Michigan affirmed Trump's victory in the state, with the president-elect picking up more than 100 additional votes in the recount.
Recounts uncovered no widespread voter fraud or hacking.
Election results from The Associated Press show that Stein received 1.1 percent of the vote in Michigan and Wisconsin and 0.8 percent of the vote in Pennsylvania.