Sen. John McCain announced Friday that he opposes the Republicans' last-ditch Obamacare repeal effort, which could almost nearly kill the bill. The Arizona Republican released a statement about the bill, proposed by Sens. Bill Cassidy, R-Louisiana and Lindsey Graham, R-South Carolina, which would repeal Obamacare's structure and replace it with block grants for states and it would roll back the 2010 health care law's Medicaid expansion.