[TexasFreeper2009]

The Federal government already has that power.

married couples pay a higher tax rate than single people.

you could consider it... a divorse mandate with a penalty for remaining married.

[Ken H]

You're speaking of the income tax, which comes from the 16th Amendment rather than I.8.1

See post #271 on this thread for a comparison of how Madison and Roberts viewed I.8.1