The reality of power politics —
Each of the 3 branches can say and do whatever it likes. There is great power in that for each individual branch. The ONLY check on that power is if BOTH of the other branches want to stop you.
Obama can be stopped by impeachment. Nothing else.
And that ain’t happening.
Exactly. The extent of three separate but equal powers is exercised only to the extent that each brokers with each other to ensure their enrichment of wealth and power.