President Obama drew a sharp rebuke from senior Republicans on Capitol Hill for pushing broad regulation of Internet broadband service, with lawmakers warning that such a move would imperil the “thriving Internet economy and the American jobs it creates.” The president touched off the battle after issuing a lengthy statement on Monday on so-called “net neutrality.” Staking out his position, the president called on the Federal Communications Commission to more heavily regulate Internet providers and treat broadband much as it would any other public utility.