Trump is still saying Social Security benefits won’t be taxed. The reality is that the tax break under discussion is a temporary bonus senior tax deduction whose size depends on which version of the bill makes it into law. The latest version in the Senate includes a $6,000 per person deduction, compared with the House-passed $4,000 deduction.

It's hard to plan when you're not sure what's happening next. How President Donald Trump's changes to Social Security are affecting retirees.

Lawmakers don't want to see those cuts happen, so they've been talking through different solutions to prevent them. And one such solution is to raise Social Security's full retirement age. Currently, that age is 67 for anyone born in 1960 or later. Some lawmakers feel that pushing that age to 69 could help prevent broad Social Security cuts.