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.

The Senate slogged through a tense overnight session that has now dragged into Tuesday morning, with Republican leaders searching for ways to secure support for President Donald Trump’s big bill of tax breaks and spending cuts while fending off proposed amendments,

Senate Republicans can afford to lose no more than three of their own votes on the bill, but two already are opposed and others remained undecided.