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A judge ordered Thursday a temporary block on the JEDI cloud contract in response to a suit filed by Amazon.

In April, the Defense Department announced that Amazon and Microsoft were the two finalists to provide the contract, ruling out other contenders like IBM and Oracle. Then in July, President Donald Trump said he was looking into the contract after IBM and other companies protested the bidding process. Microsoft was awarded the contract on Oct. 25.

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Amazon has been protesting the move, saying that it was driven in part by President Trump’s bias against the company. Trump often criticizes Amazon and its CEO Jeff Bezos, who also owns The Washington Post, claiming the newspaper unfairly covers his administration.

Last month, Amazon’s cloud-computing arm AWS filed a formal motion asking the court to pause Microsoft’s work on the JEDI cloud contract, claiming the evaluation process included “clear deficiencies, errors and unmistakable bias.” The court granted that motion on Thursday.

Court documents filed last December laid out in greater detail why Amazon Web Services is challenging the decision. In them, Amazon Web Services (AWS) alleged Trump launched “behind-the-scenes attacks” against the company, which caused it to lose out on the cloud contract. AWS has called for the Defense Department to terminate the award and conduct another review of the submitted proposals.

Earlier this week, Amazon said in newly unsealed court documents that it’s looking to depose Trump, Defense Secretary Mark Esper and former Defense Secretary James Mattis as part of its protest of the JEDI cloud contract award. Amazon argues that it needs to hear from Trump to learn the scope of his involvement in the bidding process.

Amazon’s top spokesperson Jay Carney told CNBC on Wednesday that the company is protesting the decision to make sure the award process was “free of political interference.”

“All we’re trying to do through this protest and this request for a legal review is to ensure that a proper decision was made on behalf of U.S. taxpayers,” Carney, a former press secretary for President Barack Obama, told CNBC when asked about Amazon’s move to depose Trump.

Microsoft has been staffing up in preparation for working on the JEDI project, despite Amazon’s efforts to protest the award decision. The company made attempts to lure talent from defense contractors and other companies, while there were numerous job openings for people with security listings. Brad Smith, Microsoft’s president and chief legal officer, told CNBC that the company was “moving even faster” since the JEDI contract was awarded.