currently we have 32? a bunch are split, like NH ME
DEM has so few ...
32 R
15 D
3 Tied (NH, ME, NJ)
IA and NV are, ironically given the POTUS polling in those states, very vulnerable to flipping from R to a tie or D but I’m not terribly worried about losing any others, Colorado is 4-3 with 1 GOP seat heavily contested but certainly not 5 others, if that happens Hillary won’t need the House to elect her.
I counted only 2 split delegations (NH, ME: quick visual scan, could be wrong), but this year’s elections could produce more....or fewer.