Manchin has been very upfront with what he would go for it. Sinema has been more vague.
Dumb shit is saying things like “two senators are holding up the other 48” when instead they should actually be working with them to get stuff passed. Dem leadership and the WH plan was to browbeat Manchin and Sinema into what they wanted. Go read all the missteps the WH staff took in courting both Sinema and Manchin. They bungled so much.