Mike Lindell, CEO of MyPillow, outside the West Wing at the White House on January 15th Drew Angerer/Getty ImagesMike Lindell, CEO of MyPillow, says he will remove his ads from Fox News.Lindell threatened to sue the network after it refused to air a commercial about a voter fraud symposium.Lindell claimed that he spent $50 Million on Fox News ads last fiscal year.For more stories, visit Insider's homepage.Mike Lindell, CEO of MyPillow, is one of Fox News' most prominent sponsors. He says that he will remove his ads from the network "immediately, indefinitely".On Thursday, Lindell spoke out to Brannon Howse from Worldview Weekend TV. He said that he made this decision because Fox News wouldn't run a commercial about a symposium that he claimed would support his voter-fraud claims regarding the 2020 election. Both Republican and Democratic election officials have not found evidence of widespread voter fraud.According to The Wall Street Journal, Lindell claimed that his advertisement would not have mentioned his claims about voter fraud.Fox News' withdrawal of MyPillow from the network would be devastating for it, which had MyPillow among its largest commercial sponsors."It's regrettable Mr. Lindell has decided to pause his advertising time on Fox News, given the level of success that he's had in building his brand through advertising with the number one cable news channel," the network stated in a statement to Insider Friday.According to The Journal, Lindell stated that his company spent nearly $50 million on Fox News ads in 2013 and paid $19 million for spots.After several sponsors including Voya Financial and IHOP dropped spots on Tucker Carlson Tonight's 2018 show, MyPillow was also Tucker Carlson’s largest advertiser.Fox, shame on you! Lindell posted a link to Friday's Journal report on his Facebook page.Dominion Voting Systems, a voting-machine company, sued Lindell this year for $1.6 billion. He alleged defamation and has since counter-sued. He is a vocal supporter of the 2020 election-fraud theories. He also launched his own social media site, which he compared to Amazon.Insider requested comment from Fox News, but they did not immediately respond.Insider has the original article.