Iowa Attorney General Tom Miller is part of the executive team leading a lawsuit against Facebook. Attorneys general from Iowa, 45 other states and the District of Columbia are accusing the social media giant of operating as a monopoly.

The lawsuit alleges Facebook’s purchase of potential rivals like Instagram and WhatsApp deprived users of the benefit of competition.

Facebook’s legal counsel cites the government’s approval of Facebook’s purchase of Instagram and WhatsApp years ago — and argues the lawsuits send a chilling message to businesses that no sale is ever final. Facebook has more than two-and-a-half BILLION users and is valued at 800 BILLION dollars.