The 'repeal' is Trump's big plan to get rid of the Affordable Care Act, widely known as Obama Care, and replace it with Trump Care . #TrumpCare will have higher costs for families, 24 million people plus people will loose their insurance coverage under TrumpCare, it will have a "crushing age tax" on older Americans, and finally the TrumpCare will "steal" from medicare. Thanks for your question, I should have added more details like this, good tip!