'Huge news: Google officially found to have violated the antitrust laws,' the Missouri Republican posted on X Thursday afternoon after a ruling was announced. 

The decision vindicates dozens of companies that were disadvantaged by Google's practices worldwide.

Daily Mail's Chief Digital Officer Matthew Wheatland was a key witness in the case, fought by the Department of Justice, which proved the tech giant promotes anti-competitive practices in two key markets.

These two markets - the publisher ad server and ad exchange markets for open-web display advertising - were illegally controlled by Google's monopoly for the last decade, the judge ruled on Thursday.

Hawley has long been outspoken about Google's online monopoly, posting just last month how he hopes the company gets what it deserves after the firm exerted control over recent U.S. elections.

'Google and Meta are massive monopolies with political agendas—and they're using their market power to control our elections,' he wrote. 'Google even rigged its search results to sway voters & tip elections.'

'And until we take away their power, nothing is going to change,' he continued. 

U.S. District Judge Leonie Brinkema granted, at least partially, Hawley's wish on Thursday. 

Her ruling noted how Google 'substantially harmed' web publishers and users with their monopoly which violated the Sherman Antitrust Act. 

The big tech company, which is worth nearly $2 trillion total, was found liable for 'willfully acquiring and maintaining monopoly power' in the advertising technology industry.

'Plaintiffs have proven that Google has willfully engaged in a series of anticompetitive acts to acquire and maintain monopoly power in the publisher ad server and ad exchange markets for open-web display advertising,' Brinkema wrote in the ruling. 

'For over a decade, Google has tied its publisher ad server and ad exchange together through contractual policies and technological integration, which enabled the company to establish and protect its monopoly power in these two markets,' she continued.