"In December, Amazon filed a challenge to the deal in federal court, saying that Mr. Trump used “improper pressure” on the Pentagon at its expense." "Microsoft

"In December, Amazon filed a challenge to the deal in federal court, saying that Mr. Trump used “improper pressure” on the Pentagon at its expense." "Microsoft said Amazon “only provided the speculation of bias, with nothing approaching the ‘hard facts’ necessary” to demand them." He may have applied improper pressure but I wasn't able to find where they presented any evidence to support this accusation. Was there any evidence or is the point of the court process to get some?