In a statement Amazon.com Inc disclosed it is contesting the Pentagon’s award of an up to $10 billion cloud computing deal to Microsoft Corp.

Amazon.com has expressed concerns that politics may have got in the way of a fair contracting process.

Last Friday, Amazon.com had filed a notice that it will formally resist the decision on the Joint Enterprise Defense Infrastructure Cloud (JEDI). On Thursday, in a company-wide meeting on Amazon Web Services, the business’ CEO Andy Jassy said, it would challenge the awarding of the contract especially since U.S. President Donald Trump is disparaging one of the contestants.

Trump has criticized Amazon and its founder Jeff Bezos.

Confirming Jassy’s comments, Amazon.com’s spokesperson 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.”

Legal experts, analysts and consultants expected Amazon.com to challenge the awarding of the JEDI contract by the Defense Department to Microsoft especially after Trump publicly derided Amazon’s bid for the high-stakes contract.

In August, Trump had said, Amazon’s bid for the JEDI contract was under review by his administration after complaints from other companies.