Actually no, It was an independent who killed the Public Option vote. There was one Dem who opposed the rules in the original bill around Abortion but he still voted yay in the end and Joe Lieberman was the Nay vote. Because they only reached 59 it was filibustered, so they clearly were not filibuster-proof.
The last time DNC had an actual 60 without caucus was 1979.
Actually no, It was an independent who killed the Public Option vote. There was one Dem who opposed the rules in the original bill around Abortion but he still voted yay in the end and Joe Lieberman was the Nay vote. Because they only reached 59 it was filibustered, so they clearly were not filibuster-proof.
The last time DNC had an actual 60 without caucus was 1979.