United Airlines CEO Scott Kirby took his proposed merger with American Airlines off the table on Monday after it generated backlash from antitrust experts, lawmakers, and President Donald Trump.

Two weeks ago, reports surfaced of Kirby floating the potential merger with Trump during a private meeting in late February. Since then, the deal has been widely panned as one that would further reduce competition in an industry that is already highly consolidated, cut flight routes, and raise ticket prices for customers.