The efficiency gap for all plans[0] shows pretty clearly gerrymandering can occur for either party. In fact, the very pro-Democratic plans are more gerrymandered than the very pro-Republican plans, including the plan in question. There are four pro-D plans with the upper error limit above .2 while the plan in question appears to be at approximately -1.5

There's no need to turn this into "if Kennedy doesn't vote against this he's in favor of gerrymandering because it helps his conservative leanings."

[0] https://cdn.vox-cdn.com/thumbor/pJwDdPDejaHo83ukoW27r6Yaaxg=...