Democrats apparently plan to reduce the amount sought in a payroll tax holiday and will seek a smaller and sunsetted millionaire surtax to pay for most of it.
Republicans are already making complaints. They are holding fast to the notion of means-testing Medicare rather than making the wealthy shoulder a little of today's economic burden. This is the second verse of their old plan to means-test Social Security. The minute either of those programs isn't a universial safety net provided in return for payroll contributions is the minute the death warrant for the programs is signed. Republicans know that.