Solicitor General vs. SCOTUS Win Rates

Overview

This pillar analyzes the historical success rate of the U.S. Solicitor General (SG) when arguing before the Supreme Court. It provides a statistical edge by tracking how individual justices vote on cases involving the executive branch.

What It Does

The model compiles decades of voting data to create a performance profile for the Solicitor General against each sitting justice. It calculates the probability of the government winning a case based on the specific justices hearing the arguments. This analysis also incorporates the legal subject matter, as justices show different levels of deference in different areas of law.

Why It Matters

The Solicitor General is often called the 'tenth justice' due to their influence and high win rate. Understanding the specific SG vs. Justice dynamics provides a more granular predictive signal than simply analyzing the court's ideological split.

How It Works

First, the pillar identifies all Supreme Court cases where the U.S. government is a party represented by the Solicitor General. It then cross-references voting records from the Supreme Court Database to calculate a win percentage for the SG against each justice. Finally, these individual probabilities are aggregated to forecast the outcome for a pending case.

Methodology

The core metric is the Justice Deference Score (JDS), calculated as (Total Votes with SG / Total Cases Argued by SG before the Justice). This score is refined by case issue codes from the SCDB, applying a higher weight to precedents in the same legal area. Analysis covers the entire tenure of each sitting justice.

Edge & Advantage

This pillar moves beyond broad ideological labels, providing a specific statistical edge based on the unique, influential relationship between the Solicitor General and the Court.

Key Indicators

• SG Win % per Justice

  high

  The historical percentage of times a specific justice has voted in favor of the Solicitor General's position.

• Justice Interrogation Tone

  medium

  Qualitative analysis of oral argument transcripts to gauge a justice's skepticism or support for the government's case.

• Historical Deference Level

  high

  A measure of a justice's tendency to defer to executive agency interpretations, particularly in administrative law cases.

Data Sources

• Supreme Court Database (SCDB)

  Comprehensive database of Supreme Court decisions and justice voting records since 1791.

• Oyez Project

  Provides Supreme Court case information, including oral argument audio and transcripts for qualitative analysis.

• SCOTUSblog

  In-depth analysis, statistics, and live coverage of Supreme Court cases.

Example Questions This Pillar Answers

• → Will the Supreme Court rule in favor of the U.S. Government in United States v. Major Tech Corp?
• → Will Justice Kavanaugh vote with the Solicitor General in the upcoming environmental regulation case?
• → Will the government win its case before SCOTUS by a margin of 6-3 or greater?

Tags