Washington, DC (CNN Business) Amazon alleged on Monday that President Donald Trump abused his position to apply "improper pressure" on Pentagon decision-makers to stop the company from winning a military contract worth billions of dollars.

Amazon AMZN In a formal protest unsealed at the US Court of Federal Claims,said Trump "launched repeated public and behind-the-scenes attacks" against the company in an effort to undermine its bid and hurt CEO Jeff Bezos, "his perceived political enemy" because of his ownership of The Washington Post.

Microsoft MSFT The complaint calls for the Defense Department to revisit its decision to award the contract to. Hanging in the balance is a Pentagon procurement effort for cloud computing valued at $10 billion over 10 years.

"The stakes are high," Amazon said. "The question is whether the President of the United States should be allowed to use the budget of DoD to pursue his own personal and political ends." The White House declined to comment.

In a statement, the Defense Department said it would not be commenting on specific claims in Amazon's filing concerning the Joint Enterprise Defense Infrastructure, or JEDI, cloud computing contract.

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