Provide them a bigger budget to hire their own staffers, who can do research?
Produce more non-partisan, publicly-funded research, data, and surveys?
Make them study themselves? How do judges get informed on topics they attempt to pass judgement on?
They get expert witnesses. They certainly don't "do their own research"
Exhibit A: https://www.theverge.com/2017/10/19/16503076/oracle-vs-googl...
Provide them a bigger budget to hire their own staffers, who can do research?
Produce more non-partisan, publicly-funded research, data, and surveys?
Make them study themselves? How do judges get informed on topics they attempt to pass judgement on?