So they can at some point abolish the Legislative branch.
It's one of the first things a dictator would do to consolidate power.
Weimar Germany had an Article 17 in its constitution. It allowed the President to rule by decree if the Reichstag was deadlocked. As it was after the Nazis gained a huge number of seats in the 1930 elections., and they were fighting with the Communists to stall everything. For two years the Chancellor ruled by decree. So when Hitler took office, the German people were used to dictatorship. Hitler just took the power and ran with it. If Obama gets re-elected and the Republicans hold on to power. Obama may just go full bore with this. By 2017, it would take a very determined anti-progressive Republican President and large majorities in an anti-prohressive Congress to BEGIN weeding this garden.