The talking filibuster

This is the latest Democratic strategy since they are unlikely to abolish the filibuster altogether. The idea is to take it back to the days when the minority had to keep talking on the floor to maintain a filibuster. Apparently Manchin is open to the idea. Biden said he prefers to keep it as it is? Why? We can't read his mind but it does provide cover to pretend to support progressive ideas knowing they'll never pass a filibuster.