Jeb Bush has also signed on for 'the nuclear option'
http://www.bloomberg.com/politics/articles/2015-06-26/nuclear-2-0-jeb-bush-is-open-to-ending-the-senate-filibuster-to-repeal-obamacareBut this is all just pandering to those going through the stages of grief over hopes they would end Obamacare. By 2017 at least 10% of the country will be directly covered by Obamacare (kids on parents plans, expanded Medicaid and via exchanges). There is not replacement plan that will keep all those people covered without including the things GOPers say they hate (taxes and mandates). And they arent just going to kick 30 million off coverage. Plus there are tens of millions who are now protected against losing insurance over pre-existing condition and lifetime caps. It's over. Time for GOPers to move on to 'reform' not 'replace,'
as noted by David Frum. ANd of course Walker and Bush know all that but they are in the pandering season.
