From your source, the following looks reasonable.
Originally Posted by willigetagc
ok.. this is what I see so far
(1) I-485 filing without PD being current - ruled out (prereq legislation)
(2) EAD, AP without I-485 being filed - ruled out (prereq #1)
(3) Aug VB being "C" - ruled out (additional lawsuits)
(4) re-re-issuing Jul VB - ruled out (no time, lawsuits)
(5) recapture old visa numbers (prereq legislation)
The only source you need is to prove that 1) does not need legislation.