The campaign requested contributions to send cash to the “Official Election Defense Fund.”
Similarly, the Republican National Committee (RNC) announced its plan to raise at least $60 million to fund legal challenges brought by Trump.
"They want $60 million," an anonymous Republican donor, who received solicitations from the campaign and the RNC, told Reuters.
Two other anonymous sources told the news agency that the Trump campaign aimed to raise as much as $100 million for the joint fundraising committee it maintains with the RNC.
Analysts expect the Trump campaign to launch massive legal action against Biden's team.
The call for funds comes as both the Trump and Biden campaigns recruit the best lawyers in the country to go to a potentially lengthy legal battle over the results of the election.
So far, Biden's campaign has recruited a list of top litigators including former White House counsel Bob Bauer, former deputy White House counsel Dana Remus and election law giant Marc Elias.
Also in Biden's legal team are former solicitors general Walter Dellinger III and Donald Verrilli Jr., plus former Attorney General Eric Holder.
The Trump campaign, however, has reportedly failed to recruit top attorneys considered household names.
On board Trump's legal team is Mark “Thor” Hearne II, former President George W. Bush’s national legal election counsel.
Trump's legal team has filed a barrage of lawsuits in several battleground states in an effort to win reelection with the help of the court judges.
Trump pledged to launch a legal fight as his Democratic rival Joe Biden inches closer to winning the US presidency.