I thought Mitt Romney clearly got the better of Barack Obama in last night's debate. But what also struck me was how acute Romney's need to win Congress is if he's going to follow through on his promises.
The President cannot change anyone's tax rates. The President cannot cut spending. The President cannot repeal Obamacare, though he can halt the output of regulations. President Obama, on the other hand, can live off the liberal legislation passed from 2009-2010, when Democrats delegated broad legislative powers to the executive in Obamacare and the bailouts. Our Constitution's separation of powers places a high bar before efforts at reform, especially when it comes to uprooting flawed legislation.