Last night, Republican leadership released a manager’s amendment to the American Health Care Act (AHCA) that would delay the repeal of the additional Medicare tax (AMT) of 0.9% imposed on certain high-income individuals from 2017 until 2023.  The move is an effort to shore up Republican support for the bill in advance of an expected vote late this afternoon or this evening.  The delay comes three days after an earlier manager’s amendment moved up the repeal of the AMT from 2018 to 2017, and added a transition rule related to employer withholding of the tax.  That change was also made in an effort to shore-up Republican support ahead of the House vote, which was originally expected to happen yesterday.