Amazon.com (AMZN) - Get Report formally filed a protest over the Pentagon's decision to award Microsoft (MSFT) - Get Report  the $10 billion JEDI contract for military cloud services.

Amazon, for the first time, directly linked comments by Donald Trump to the award of the Joint Enterprise Defense Infrastructure contract to Microsoft last month, according to a report in The Washington Post.

Amazon filed its protest under seal, but also notified the Court of Federal Claims that it plans to use four videos as exhibits, including one of the president at a campaign rally in February 2016, and a video of a Fox News host urging Trump to prevent the Pentagon from awarding the contract to the tech and online retail giant, the report said.

"The Complaint and related filings contain source selection sensitive information, as well as AWS's proprietary information, trade secrets, and confidential financial information, the public release of which would cause either party severe competitive harm," Amazon told the court in a filing. "The record in this bid protest likely will contain similarly sensitive information."

The Pentagon announced on Oct. 25 that Microsoft had won the contract.

Amazon's web services unit last week announced it was challenging the Pentagon decision

In a statement, a spokesman for Amazon Web Services said "numerous aspects of the JEDI evaluation process contained clear deficiencies, errors, and unmistakable bias -- and it's important that these matters be examined and rectified."

U.S. Defense Secretary Mark Esper has said he is certain that the award of the contract to Microsoft instead of Amazon was done fairly.

Esper recused himself from the contract decision because his son had worked for one of the other unsuccessful bidders.

Amazon dominates the cloud computing space with about 33% of the business, while Microsoft trails with about 16%.

Trump called for a review of the contract process last summer as incoming Esper took office. At the time, many analysts were expecting Amazon to win the deal.

Trump has feuded with Amazon CEO Jeff Bezos, who owns the Washington Post. At the time of the review, Trump said he'd received multiple complaints from other companies about the bidding process.

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