Tech giant Amazon said in court documents made public Monday that U.S. President Donald Trump worked to block it from being awarded a public $10 billion Pentagon cloud computing contract.

Amazon’s lawyers said in a heavily redacted 103-page document filed in U.S. federal claims court that the “arbitrary and capricious” decision to award the contract to Microsoft was due to “improper pressure” from Trump who the company said “launched repeated public and behind-the-scenes attacks” to ensure it would not be given the contract.

Amazon said Trump was motivated by his desire “to harm his perceived political enemy-Jeffrey P. Bezos,

Read more: Amazon says Trump blocked it from $10B cloud contract