Why Condi won’t testify publicly
No nefarious political posturing here, folks. This is a simple “separation of powers” thing. You’ve no doubt heard the term “chilling effect” before. That’s what separation of powers is about.
It’s the reason federal judges are appointed for life. It’s the reason we have three separate branches of government, with limited ability to interfere in each other’s affairs.
Put simply - could a president make difficult decisions if every thought was counterbalanced by the fear of being hauled before a congressional investigation?
Could the Supreme Court do their job if they felt that any controversial decision they made could result in their removal from the court?
The only way the President (or his advisors) should be compelled to testify under oath before congress is if there are indictments presented alleging specific criminal behavior. Absent that, the congress will have to make due.