WILLIAM SCHNEIDER, CNN SENIOR POLITICAL ANALYST: If they vote for a third party, they're probably helping to elect the candidate they like least. If they voted for, say, Ralph Nader last year, the ...

ROGER COSSACK, CNN LEGAL ANALYST: There is a specific law which requires us all to file an income tax return, and that's called the United States Tax Code. Now, interestingly enough, if you file a ...