Abby Bisi

The theory of motivated reasoning suggests that we seek out agreeable information and learn it more easily; and we avoid, ignore, devalue, forget, or argue against information that contradicts our beliefs.

For example, it's easier for ardent Trump supporters to downplay his inappropriate behavior towards women than it is to accept this information and adjust their opinion of him accordingly. Having already committed support publicly, their reputation is at stake and the need to construct a motivated reasoning is high.