The Senate is expected to vote Tuesday on whether to take up health care reform, which will require 51 votes to open debate. It's unclear what any final product will look like if that first procedural vote is successful. The first vote is intended to open debate on the American Health Care Act (AHCA), the GOP-sponsored Obamacare replacement plan that passed the House of Representatives in May. Republicans need 51 votes to proceed to the legislation, which would then be subjected to what is expected to be a lengthy amendment process. Democrats are united in their opposition to the legislation,...