 In effect, presidents were given functional lawmaking power, and agencies basically became fully partisan actors. With the overturning of Chevron deference, the power now is returned to the courts and to Congress to make law. Agencies can no longer just interpret laws however they want. This will also make Congress more accountable. No longer can members of Congress say, as Nancy Pelosi famously said about Obamacare, quote, we have to pass the bill so that you can find out what's in it.