Pre-inauguration diplomatic call is standard transition protocol. A-score minimal: election driver 1 (transition activity, not electoral integrity threat), separation 1 (foreign policy coordination during transition period). Unknown mechanism reduces modifier to 0.7. International scope provides 1.1x but narrow population limits impact. Final A=1.1. B-score moderate at 15.8 driven by timing (pre-inauguration creates media interest) and media friendliness (Trump-China relations perennial topic). However, this is routine diplomatic engagement without constitutional implications or clear distraction intent. Classification: Noise - standard presidential transition activity with predictable media coverage but no substantive constitutional or distraction significance.