Seen mentions of coming "1-vote margin" for House Rs. 
My polite tweak:
With 2 Calif seats breaking toward Ds, Rs likely end w/ 220-215 majority.
They'll lose 3 seats (Gaetz, Waltz, Stefanik) until late spring: 217-215.
A 216-216 vote fails. 
Hence, ZERO-vote margin.
Every House R = 1 Joe Manchin