Newt Gingrich has some interesting thoughts on what happens when politicians with the right policy frameworks end up in within the DC Beltway for too long.  They have a hard time on implementation.

That part that resonated with me included:

He cited a series of blunders under Republican rule, from failures in
the aftermath of Hurricane Katrina to mismanagement of the war in Iraq.
He said the immigration bill passed by his former colleagues in the
House of Representatives is unrealistic and too harsh toward
undocumented immigrants, called congressional efforts to regulate
lobbying "much too weak" and said the government has squandered
billions of dollars in Iraq.