base rate:
Trump has attended 0 out of 5 WHCDs as president (2017-2020, 2025). He is the first president since Coolidge (1924) to skip all dinners. Historical base rate for Trump specifically is 0%. For presidents generally, attendance rate is near 100%.
evidence updates:
The critical evidence is the report that Trump accepted the 2026 WHCA invitation via Truth Social. This is a massive upward shift from the ~5-10% base rate I would have assigned to the overall question. A public acceptance from a sitting president is strong evidence of attendance, pushing the 2026 probability to ~72%. The incomplete nature of the source and the market drop introduce some uncertainty.
combination method:
Maximum across sub-questions. The dominant pathway to YES is through the 2026 dinner (9 days away with reported acceptance). 2025 is confirmed NO. 2027-2028 serve as backup pathways with low individual probability.
final:
The reported Truth Social acceptance for the 2026 dinner is the key driver. With approximately 72% probability on the 2026 dinner alone, plus small residual probability from 2027-2028, the overall probability is approximately 75%. Confidence is moderate because the key evidence (Trump's acceptance) comes from a partially documented web search, and Trump remains unpredictable.
ensemble:
{'ensemble_count': 3, 'perspectives': {'base_rate': {'p_yes': 0.75, 'confidence': 0.55}, 'evidence_driven': {'p_yes': 0.75, 'confidence': 0.55}, 'contrarian': {'p_yes': 0.75, 'confidence': 0.55}}, 'spread': 0.0, 'individual_p_yes': {'base_rate': 0.75, 'evidence_driven': 0.75, 'contrarian': 0.75}}