Ideally, his political leanings are not involved in his judicial decisions.
For whatever it's worth he clerked for the FDR-appointed justice https://en.wikipedia.org/wiki/William_O._Douglas, was in the US Dept. of Justice under Carter and Reagan, was appointed to the federal court by Clinton, and is a registered Democrat.
We need more judges outside of the D.C. circuit. Technology knowledge is SORELY lacking among the current crop, for that reason alone we need a voice like his.