WASHINGTON (Reuters) - Democratic presidential nominee Hillary Clinton thinks U.S. regulators should closely scrutinize AT&T's acquisition of Time Warner , her spokesman said on Sunday. Clinton spokesman Brian Fallon told reporters on Sunday there were "a number of questions and concerns" about the deal "but there's still a lot of information that needs to come out before any conclusions should be reached." "But certainly she thinks regulators should scrutinize it closely," Fallon said. (Reporting by Luciana Lopez; Writing by Julia Edwards; Editing by Sandra Maler)