Where compromise is sought – politically

– Sam Rohrer is asked, what are the non-negotiable areas (often called one’s core) that can/should never be compromised?
– If someone is pressured to concede in any way on moral or constitutional truth then they’ve done wrong?
– Gary Dull is asked, what advice have you given to political leaders who live constantly under the pressure to compromise where they should not do so?
– What would be an example of an appropriate political compromise?