ObamaCare Clusterfuck: What might have been
If Obama and the Democrats had passed single payer Medicare for All in 2009, every American would have had guaranteed coverage for two years by now; it took LBJ only a year to get all 65+ citizens covered in 1965, and that was in the days before computers. Back then, the Democrats controlled the House and the Senate, and could passed the bill.
But wait, you cry. The filibuster!
Well, Senate rules can be changed by majority vote in odd-numbered years; 2009, 2011, 2013.* The Democrats could have changed the Senate rules when Obama had just been elected with a huge mandate for "hope and change" (remember that?) and the Republicans had been thoroughly discredited under George W. Bush. They chose not to. (Every Obot, without exception, has fallen silent when I show them this is true.Because it means the Democrats all totally complicit in all the Republican resistance. They enabled it! This is called kayfabe.)
Now, you can argue that abolishing the filibuster that way would destroy that comity we've got so much of now, or that "We might need the filibuster ourselves one day." Those are both reasonable points, but what you are really saying is that there are more important things than leaving at least $400 billion in savings on the table with single payer, or saving the lives and ending the suffering that comes from being denied needed care under the system.
NOTE * This fact is known by every insider in Washington, for those who came in late. The whole logic was laid out in the discussions of the "nuclear option" during the Bush administration, and the idea originates from a Democrat, Majority Leader Byrd, as the link above shows.