WASHINGTON—The Justice Department’s case against AT&T Inc.’s planned acquisition of Time Warner Inc. has shown signs of strain after a grueling trial, highlighting the difficulty of challenging a merger involving companies that aren’t direct competitors. A key government witness drew skepticism from the judge, and five weeks of testimony turned up few major revelations from senior executives. Closing arguments, set for Monday, give the Justice Department a final chance to frame its arguments and AT&T an opportunity...

Source: Wall Street Journal April 29, 2018 12:00 UTC