What is Pelosi up to on Build Back Better?

TYT looks at Pelosi's latest comments that not only will she have a vote on the infrastructure bill (IB) on Thursday but that it will pass. And we know that she'd never assert that unless she has the votes to pass it. So how is that possible given the progressive caucus holding firm on voting it down unless and until the BBB bill passes the Senate first?

They speculate that Pelosi's possible strategy is that she'll have a House vote on the House version of BBB first which will pass. And then right after have a vote on the Senate's IB, pressuring the progressives that she fulfilled her promise to have a vote on the BBB first. But that is not what she originally promised, not did the progressives: They committed to first passing the BBB in the Senate, not the House.

So something is going on with Pelosi being so confident that IB will pass in the House on Thursday. I surely hope if the above speculation is right that the progressives don't fall for it and vote it down. If not, then the BBB will never pass the Senate without the leverage they held over the IB.  

Another, more horrific, possibility is that she made a deal with enough Repugnacons to out vote the progressives on the IB!