D's needed I think 23 net house seats for a majority. Looking like they'll get it, but not with much margin.
So far in the Senate the R's have flipped MO, FL, ND and IN. Thus far holding everything able to be called. Only question marks left, really are AZ, NV and MT. No data out yet for NV, AZ really is looking like a nail biter. MT probably stays D, but enough votes left it could flip.
So minimum R+2, could go to R+5 depending on how those 3 races shake out.