Proper and politically correct terminology would not refer to Medicaid as "welfare", but that's what it really is when the smoke clears. You could have various combinations of welfare cash, food stamps, heating bill help and Medicaid. Mix or match a wide variety of Government programs primarily geared to address the needs of the very poor.
The problem is substantially more complex than simply adding 40 million people to the welfare rolls. The concept of which borders on ludicrous, again, you can't be serious about this? An apparently reasonable Republican suggesting that we add 40 million to the welfare rolls? Come on, you really are pulling my leg!
Reminds me of Rush Limbaugh's latest quote after getting out of the hospital, "There is not ONE thing wrong with American health care." The guy is completely out of touch with reality.