According to Roll Call: A measure to curb the independent political groups known as 527s will be included in the House version of a lobbying bill that is slated for a vote this week, senior GOP aides said Tuesday. The decision by House Republicans to include the off-again, on-again language promises to intensify an already charged partisan debate on ethics rules. It also sets up a clash with Senate Democrats, who have threatened to filibuster any package that includes the provision.