1. “I cannot support a piece of legislation that takes insurance away from tens of millions of Americans.”

With those words, Senator Dean Heller of Nevada became the fifth Republican to say he could not support the Senate health care overhaul in its current form, dealing a blow to his party’s attempt to repeal the Affordable Care Act.

Our analysis of the draft bill found that the largest benefits would go to the wealthiest Americans, and its biggest losses would fall to poorer Americans who rely on government support. Here’s how the Senate plan would dismantle Obamacare.