Iowa Senators Chuck Grassley and Joni Ernst are sounding a note of caution as Republicans work to undo the Affordable Care Act. The Republicans appeared together in Altoona Tuesday, where Grassley said just one bill won't kill "Obamacare." Ernst said a process known as "reconciliation" will be used to get rid of bits and pieces of the ACA. Grassley also said the House-passed bill isn't being considered as a group of senators are discussing what should be in the Senate's bill.