Referendum 60

A national referendum may be placed on the ballot by approval of 10% of the state legislatures (5 states)

A 60% plurality shall be necessary for passage of the referendum.

A successful referendum shall become law subject to not being overridden by a vote of both houses of the United States Congress.  A vote to override shall be a one-issue vote. It may be a repeal-and-replace vote. 

Results of a successful referendum vote shall not be subject to judicial review nor be subject to a presidential veto. 

A maximum of three legislative proposals may be placed on ballot every two years.