Employment Litigation · Primary-source case analysis

Desert Palace: Circumstantial Evidence Can Support a Mixed-Motive Instruction

By Aneeta Mishra and Timothy Chan

Published April 28, 2026

Desert Palace confirms that ordinary circumstantial evidence can prove a protected trait was a motivating factor in an employment decision.

A warehouse employee alleged sex-based discipline

Catharina Costa presented evidence that she was disciplined and discharged more harshly than male coworkers. The jury received a mixed-motive instruction and found sex was a motivating factor.

The statutory text does not demand direct evidence

Section 2000e-2(m) asks whether the protected characteristic was a motivating factor. Congress did not add a special evidentiary threshold or use the phrase direct evidence.

Circumstantial evidence is not inherently inferior

Factfinders routinely use direct and circumstantial proof, and either may be persuasive. Courts should not create a heightened gateway absent statutory language.

Disposition

The Court unanimously affirmed the judgment allowing the mixed-motive instruction. The employer’s same-decision defense affects remedies under the statutory scheme.

Key takeaways

• Use both direct and circumstantial proof.
• Connect comparator and discipline evidence to motive.
• Request instructions that track the statutory text.
• Analyze the same-decision defense separately from liability.