Not sure how the government can tell me what shares I have to sell first stocks

http://www.businessinsider.com/trump-gop-tax-plan-biggest-us-investment-firms-have-major-problem-2017-11If this is in the tax plan that gets passed I guess I could just use a different broker every time I buy shares of the same stock. This makes no sense to me. I should have the right to sell something I own.

Fake news