Step 1. Wait for your political opponents to piss off their constituency, then leap on them like wolves on a bleeding deer.
Step 2. Take away their seats in the legislation come election time.
Step 3. Spend the next two years undoing everything they did – or more exactly, everything they didn't stop the White House from doing.
Step 4. Presidential authority should be sufficiently undermined that, after you win Congress back, he will be effectively paralyzed as a political animal for the remainder of his term.