1.   As an incentive to adhere to the voluntary limits, candidates who refused to limit their spending would be identified in voter pamphlets as doing so.

2.   A bill co-sponsored by Sen. John McCain, R-Ariz., calls for free air time for candidates if they agree to voluntary limits on spending.

3.   A Senate version of the bill would have set voluntary spending limits for Senate candidates through a formula based on voting-age population.

4.   But if they take it, they must adhere to voluntary spending limits throughout their campaigns.

5.   By accepting such contributions, the parties could exceed the voluntary spending limits agreed to by the candidates.

6.   Candidates who decline public funding or the voluntary limit must file a statement stating how much they will spend.

7.   Candidates who refused to sign the affidavits also were required to file daily reports of their expenditures and contributions, once their campaigns exceeded the voluntary limits.

8.   Candidates agreeing to these voluntary limits would get discounted broadcasting and mailing rates for their campaigns.

9.   Clinton supports a bipartisan measure that would set voluntary spending limits and give candidates incentives to live within those limits.

10.   Democrats could undermine the compromise by insisting the voluntary spending limits be restored.