Confirmation bias is the tendency to notice, seek out, and remember information that supports what we already believe while ignoring or discounting evidence that challenges it. It is one of the most powerful reasons people become more certain even when they are wrong.

In everyday life, confirmation bias shapes politics, relationships, investing, and even personal identity. The mind often acts less like a neutral judge and more like a lawyer defending a preferred conclusion.

Reference:

Wikipedia: Confirmation bias

https://en.wikipedia.org/wiki/Confirmation_bias