Libertarian group uses nonprofit status to avoid revealing source of $1.5 million spent to preserve state's term limits -- SACRAMENTO -- Just a few days after Insurance Commissioner Steve Poizner's widely heralded takeover of the No on Proposition 93 campaign, a Virginia-based nonprofit organization quietly chipped in $1.5 million to the cause. The group, U.S. Term Limits, spends considerable effort and money across the country trying to fend off attempts to weaken term limits laws, such as Prop. 93 -- which will appear on the February ballot -- in California. And the group tries to do so while steering clear...