The bills are compromises between the democrats and republicans that are watered down enough to pass the president. The President never once vetoed a bill in his first six years in office. He begen vetoing and threatening to veto bills once the dems gained control. They have to send him bills that have enough of his agenda in them or he sends them right back. It all comes down to the president in the end. He says yes or no. Unless the senate is 2/3 democrat and able to override a veto, the president is still the ONE in charge.