Democrats in the Senate blocked a Republican-backed resolution to disapprove of the FCC’s rules on net neutrality. The vote was 52-46 against the resolution. Adopted by a divided FCC last December, the rules forbid broadband providers from blocking legal content while leaving flexibility for providers to manage their networks. The rules still face a court challenge. Lawsuits by Verizon and others have been consolidated. Backers of net neutrality say big providers could otherwise use their gatekeeper role to discriminate against competitors. But Republicans said the rules were an unprecedented power grab by the FCC.