snip ...

To a first approximation, Democrats should first shore up their own seats, then go after the low-hanging fruit next, meaning the Republican-held districts with a PVI of D+x, then EVEN, then R+1, then R+2, etc. The table below lists all 218 Republican-held seats by PVI. The second column gives the number of districts at each PVI. For example, there are four Republican-held districts that are R+1 and 11 at R+5. The last column gives the cumulative number of flips assuming they fall in order. So, for example, if the Democrats win all the Republican-held seats from D+3 to R+5, they flip 39 seats.

snip ...

The bigger the wave, the deeper the Democrats go into Republican territory. Of course, the PVI isn't the whole story. Candidate quality can play a role, as well as local issues, and how good a fit the incumbent is for the district. Still, this is a basis. If Democrats overperform by 5 or 6 points or more in all the soft Republican districts, they could flip a few dozen seats.

#3 Those are not starting points.

Those are straw arguments with no basis in fact.

You're welcome.

#6 Dumbest and most clueless.

Such a combination, eh, Clown? :-)

#11 So?