President Donald Trump keeps saying that Republicans’ mega tax and spending cut legislation will eliminate taxes on federal Social Security benefits. It does not.

Up to 85 percent of Social Security benefits can be taxed—but a new deduction will reduce how much seniors need to pay.

The tax savings for a married couple with $100,000 of income could be about $1,600 a year under the Senate plan. It amounts to a bit less than half of the savings if there were no