The House on Wednesday backed a one-year delay in the penalty that individuals would have to pay for failing to sign up for health insurance, the 50th time Republicans have forced a vote to repeal, gut or change the law championed by President Barack Obama. The vote was 250-160, with 27 Democrats joining Republicans on legislation to postpone the individual mandate under the law. The measure stands no chance in the Democratic-led Senate and the White House has threatened a veto. The vote was another example of the election-year political maneuvering on health care. Republicans remain convinced that public dissatisfaction with the law will cost Democrats in November's contests, helping the GOP increase its majority in the House and possibly win back the Senate.