# What will be the total spending by all Senate candidates in the 2026 US election cycle?

<table class="pythia-summary">
<tr><th>Forecast at</th><td>2026-10-01 14:19 UTC</td></tr>
<tr><th>Source</th><td>Metaculus AI Benchmark tournament</td></tr>
<tr><th>Engine</th><td>ensemble</td></tr>
<tr><th>P10</th><td>1.32e+09</td></tr>
<tr><th>P50 (median)</th><td><strong>1.59e+09</strong></td></tr>
<tr><th>P90</th><td>2.1e+09</td></tr>
</table>

*This forecast was generated by the Pythia ensemble and submitted to the [Metaculus AI Benchmark](https://www.metaculus.com/aib/) tournament. [View the question on Metaculus](https://www.metaculus.com/questions/45846/).*