Which system has the least amount of government involvement in the economy? socialism capitalism communism collectivism

Which were the most important issues during the presidential election of 2008? economic downturn and environmental protection two overseas wars and economic downturn two overseas wars and campaign spending environmental protection and campaign spending

If one thinks illegal immigrants should become american citizens, should they become american citizens automatically or should there be a waiting period?

What was the compromise that allowed california to be admitted to the union