Dominion Voting Systems on Monday sued Rudy Giuliani, saying that former President Donald Trump‘s personal lawyer defamed the company by spreading allegations that the company stole the 2020 presidential election for President Joe Biden.

The lawsuit, filed in the U.S. District Court for the District of Columbia, seeks over $1.3 billion in damages and argues that Giuliani and his allies promoted claims against Dominion, “which foreseeably went viral and deceived millions of people into believing that Dominion had stolen their votes and fixed the election.”

“For Dominion — whose business is producing and providing voting systems for elections — there are no accusations that could do more to damage Dominion’s business or to impugn Dominion’s integrity, ethics, honesty, and financial integrity,” the lawsuit reads. “Giuliani’s statements were calculated to — and did in fact — provoke outrage and cause Dominion enormous harm.”

“Dominion’s defamation lawsuit for $1.3B will allow me to investigate their history, finances, and practices fully and completely,” a spokesperson for Giuliani told this reporter. “The amount being asked for is, quite obviously, intended to frighten people of faint heart. It is another act of intimidation by the hate-filled left-wing to wipe out and censor the exercise of free speech, as well as the ability of lawyers to defend their clients vigorously. As such, we will investigate a countersuit against them for violating these Constitutional rights.”

According to Dominion’s website, voting machines and other election equipment used by more than 40% of U.S. voters are provided by the company.

Starting in November, after the general election, some pro-Trump conservatives began to make a series of allegations that the company rigged the presidential election for Biden, including Giuliani.

On November 11, Giuliani tweeted out: “Any information about Dominion? Strange to pick a foreign company to count the US vote. Something wrong with this?”

The case also argues that the former New York mayor’s allegations about the company and the election being “stolen” helped in motivating the mob that violently stormed the U.S. Capitol on January 6 to prevent Congress from voting to certify Biden’s victory.

At a January 6 rally in front of the White House against Congress certifying Biden’s win, Giuliani said: “Last night, one of the experts that has examined these crooked Dominion machines has absolutely what he believes is conclusive proof that in the last 10%, 15% of the vote counted, the votes were deliberately changed. By the same algorithm that was used in cheating President Trump and Vice President Pence. Same algorithm, same system, same thing was done with the same machines.”

“Having been deceived by Giuliani and his allies into thinking that they were not criminals — but patriots ‘Defend(ing) the Republic’ from Dominion and its co-conspirators — they then bragged about their involvement in the crime on social media,” Dominion’s filing claims.

Dominion is also suing pro-Trump allies such as Sidney Powell, who has claimed that Dominion was a Venezuelan company who rigged the 2020 election for the country’s late socialist dictator Hugo Chavez.

You can follow Douglas Braff on Twitter @Douglas_P_Braff.