As goes Michigan . . .

Michigan and other industrial states play an important role in the climate and energy debate. Both of its Democratic senators – Carl LevinCarl Levin'Nuclear option' for Supreme Court nominees will damage Senate McCain's Supreme Court strategy leads to nuclear Senate The Fed and a return to banking simplicity MORE and Debbie StabenowDebbie StabenowFight over water bill heats up in Senate Overnight Energy: Senate Dems set to fight water bill Senate Dems may block water bill over drought language MORE – are willing to back a federal climate and energy bill.

But they are also among the senators demanding that any bill include trade provisions – including so-called carbon tariffs – to prevent manufacturers from being undercut by competitors in nations that don’t require major emissions curbs.