Jeb Bush is releasing a healthcare plan that would repeal President Obama’s healthcare law and replace it with a new system of health insurance tax credits, reflecting two political and policy assumptions.

One, Bush has determined that a candidate cannot win the Republican presidential nomination nor can the healthcare system be truly reformed, without repealing Obamacare. Two, he has accepted that Obamacare, by expanding insurance, has shifted the debate in a way that forces Republicans to take coverage into account when crafting alternatives.