With anger still running high among some California State University employees over recent executive pay hikes, Gov. Arnold Schwarzenegger on Friday vetoed a bill aimed at controlling salary increases and "sweetheart" deals for retiring administrators.

What is impasse? How does the mediation process work? What if mediation fails to reach an agreement? How often does mediation or fact-finding result in settlement?

CSU Trustees authorize "outrageous" executive increases. Parties head to impasse.

CSU rejects union proposal, submits plan that would reduce size of general salary increase.