base rate:
Historical base rate of presidential aggregate approval dropping below 35% in any given term: ~23% (Nixon, Carter, GWBush). But conditioning on starting the window at ~42-43% with only 8.5 months remaining, and Trump's documented partisan floor of ~36-38% throughout his political career, the conditional base rate is much lower — roughly 10-15%.
evidence updates:
Strong evidence VoteHub has been 42-43% through the elapsed window pushes sq1 to ~3%. For sq2, Iran conflict and economy concerns push UP ~5%, but partisan floor and aggregate stickiness push DOWN ~8% from the unconditional base rate. VoteHub aggregates appear to run slightly HIGHER than some other aggregators (42-43% vs RCP 40.9%), making 35% further away, not closer.
combination method:
Maximum across sq1 (already happened) and sq2 (will happen in remainder). P = 1 - (1-0.03)(1-0.12) ≈ 0.15. However, given strong evidence sq1 is essentially resolved NO and sq2's forecast may be slightly overweighting tail risk given the clear partisan floor demonstrated throughout Trump's career, I adjust down to ~0.09.
final:
Trump's aggregate approval has demonstrated remarkable stickiness within a 38-46% band throughout his entire political career, with a firm partisan floor around 37%. VoteHub specifically has shown 42-43% readings. For the market to resolve YES, VoteHub would need to dip below 35% at some point in the next 8.5 months — requiring a 7-8 point decline that would be historically unusual absent a Watergate/Iraq-War-quagmire level crisis. While Iran and economic concerns provide real downside risk, the probability is modest: ~9%.
ensemble:
{'ensemble_count': 3, 'perspectives': {'base_rate': {'p_yes': 0.09, 'confidence': 0.72}, 'evidence_driven': {'p_yes': 0.15, 'confidence': 0.7}, 'contrarian': {'p_yes': 0.15, 'confidence': 0.6}}, 'spread': 0.06, 'individual_p_yes': {'base_rate': 0.09, 'evidence_driven': 0.15, 'contrarian': 0.15}}