Here are a few formal options, each with a slightly different emphasis:
Option 1 (Comprehensive and direct)
“The Role of Partisan Bias in Misinformation Assessment: A Conflict Between Identity Defense and Differential Knowledge”
Option 2 (Focus on the mechanism)
“Understanding Partisan Judgments of Misinformation: The Interplay of Identity Protection and Knowledge Asymmetry”
Option 3 (Concise and academic)
“Partisan Bias in Misinformation Judgment: Identity Protection Versus Knowledge Disparity”
Option 4 (More mechanistic)
“Assessing Misinformation Through a Partisan Lens: Mechanisms of Identity Preservation and Knowledge Gaps”