Because of JW efforts to hold Special Counsel Mueller accountable, JW found info showing biases among DOJ officials like Andrew Weissmann (top prosecutor on the Mueller team) praising Obama DOJ holdover Sally Yates for lawlessly thwarting President Trump.
https://www.judicialwatch.org/press-room/press-releases/judicial-watch-new-justice-department-records-show-strong-support-mueller-deputy-andrew-weissmann-top-doj-officials-yates-refusal-enforce-president-trump-travel-ban/