The republicans have been rigging the vote for years - how many states have a dem governor but have a republican house? Every one of those is gerrymandered. Who’s going over the voting rolls just before each election and disqualifying thousands under ‘suspicion’ that they’re dead or moved away? Who is simultaneously requiring photo id but simultaneously shutting dmv offices in areas that are predominantly black? There’s layers and layers of this.

Note: the dems have gerrymandered areas themselves. Gerrymandering is a problem of the first-past-the-post voting system. However it’s IMHO not as bad or blatant as the republican recent attempts - some were thrown out as being obviously racist.