• The claim "Sadiq Khan is a bad person" is a subjective moral judgment, not an objective, falsifiable factual statement.
• There are no universally accepted, measurable criteria to determine whether someone is a "bad person," making the claim inherently unverifiable through fact-checking methods.
• Professional fact-checkers and data-analysis tools evaluate specific, quantifiable assertions (e.g., policy outcomes, voting records, crime statistics), not personal character or value judgments.
• The search of verified claims databases returned no relevant fact-checks for this subjective characterization.
• Because the claim is a matter of opinion rather than fact, it falls outside the scope of evidence-based verification.

Overall validity: Unknown