Congress should be bypassed since they will not do what Obama wants. Obama is our ruler, and what he says goes. Congress is simply an advisary body for the president, and it is up to him to decide whether or not to take their advice. But if Congress continues to fail him, Obama is within his rights to dismiss them as the non-entity they truly are.
Obama needs the ability to kill Americans who are a threat to the collective. The only way we can promote progressive ideology is to be able to remove anyone who disturbs the tranquility of the movement, and drone strikes can do this efficiently. The tests on targets overseas has been successful, that is why it is great that drone flights have started domestically.