Absolutely true on the ACA which was passed with no Republican support. But not because the Republicans wanted a better option without private insurance. They wanted no options at all. Obama, like Clinton, wanted universal Medicare-like insurance for everyone (or at least a public option to compete with the private insurers), but the lobbying of so called “center right” democrats killed those options off. So we are stuck with a private insurance based option with government support. Expensive for no reason other than insurance company profits. I’m all for capitalism - made my career in the capital markets. But health care is too fundamental to leave to unchecked market forces. And the Republicans have no solution that they have seriously offered.

Medicare Supplement plans predate GWB by quite a few years - 1992. Bush was president when Part D was signed into law. I liked GWB - donated to and voted for him. But todays Republican Party is an anathema to the party of Nixon, Bush senior, George W. Go look at the republicans party platforms from back then - they mostly read like democratic platforms. It was a time before the crazies took over the party.