Pelosi attempted to secure a funding stream of up to $1 billion for reimbursing laboratory claims. According to White House officials who spoke with the Daily Caller, that provision would establish a precedent under which health claims for all procedures, including abortion, could be reimbursed with federal funds. That precedent would render the Hyde Amendment, which blocks taxpayer funding for abortion clinics, obsolete.
https://www.nationalreview.com/news/sasse-rips-pelosi-for-trying-to-smuggle-hyde-amendment-loophole-into-coronavirus-package/
Again, hours of negotiation, not READING THE BILL. Have you ever read a bill's text? There are constant references to other bills, striking or amending language, and you would need to research all the relevant legislation to see what they are striking, amending or including.