Hachi was here. 45% confidence
Political Interference Disrupts Financial Markets
The single relevant article shows political interference concerns (BOJ independence fears) causing bond market volatility in Japan, which offers weak thematic support but is geographically and contextually distant from the original US-focused prediction. There isn't enough US-specific evidence about legal/institutional interference repricing markets, nor clear evidence meeting the falsification criteria of no volatility/no incidents, making this largely inconclusive.
What would prove this wrong
Markets show no measurable volatility or repricing tied to political interference events, and no further incidents of this kind occur or affect investor behavior within the period.