But when it comes to climate-change policy, emboldening the GOP's conservative wing won't push the House rightward much — if at all. That's because there's little room to move any further in that direction.
Many hot-button issues expose fault lines in the GOP. Some Republicans — backed by the business community — are open to action on immigration-reform legislation, while swaths of the conservative base oppose anything that would provide citizenship to any undocumented residents.
Similarly, on the debt ceiling, the business lobby has battled GOP conservatives who have resisted lifting the nation's borrowing limit, at least without steep White House concessions.
These big divides just aren't there on carbon-emissions policy. In recent years, House Republicans, backed by the party's establishment figures, have voted overwhelmingly to nullify EPA's power to regulate carbon emissions.
An array of powerful business groups like the U.S. Chamber of Commerce and the National Association of Manufacturers have backed various pieces of House GOP legislation to strip or greatly limit EPA's power to curb emissions from power plants and factories.