It would be totally reasonable to phase out the mortgage interest deduction over ~10 years, giving people time to plan and decide how they wanted to handle it.

It would be totally reasonable to phase out the mortgage interest deduction over ~10 years, giving people time to plan and decide how they wanted to handle it. The cap is currently $1M, let's reduce it by $100k/yr. (or $50k/yr over 20 years)