GOP Senators Rand Paul, Ted Cruz, Ron Johnson, and Mike Lee ‘Not Ready to Vote’ for Healthcare Bill

Physician Assitant Marina Sarwary (L) takes a shopper's blood pressure as part of the "Shop with a Doc" program, November 28, 2016 at a Ralph's Supermarket in Irvine, California. "Shop with a Doc" is a community health program from St. Joseph Hoag Health hospital group which brings medical professionals and nutritionists into local supermarkets to give shoppers the opportunity to ask questions about ingredients and how to make healthy choices an increasing challenge for customers who are overwhelmed with the number of products claiming various health benefits. / AFP / Robyn Beck (Photo credit should read ROBYN BECK/AFP/Getty Images)
Four Republican lawmakers issued a statement on Thursday saying they are "not ready” to vote for the Senate legislation to replace the Affordable Care Act or Obamacare.