From
a scholarly paper titled "The Worst Partisan Gerrymanders in U.S. State Legislatures"
Every single one of the states just mentioned are states where it was the Republicans who rigged the districting to favor them. Read it slowly:
"Every single one." Do the Democrats do it too? Let's keep reading:
...
• There were no state houses where the Republican party received a majority of the vote in 2018, but where the Democratic party won a majority of the legislative seats.
Let's repeat that:
There were no state houses where the Republican party received a majority of the vote in 2018, but where the Democratic party won a majority of the legislative seats.
Beware:The Democratic Party traces its roots back to Thomas Jefferson in the 18th century. The Republican Party is "only" about 170 years old but is, more or less, heir to the Whig and Federalist Parties which trace back to their opposition to the ideals of Jefferson.
QOPAnon liars will be eager to say "Nanner nanner nanner your side does it too." But the examples they cite will be from decades ago, or even earlier. You can even hear the meme that QOPAnon is the pro-Black Party because Abe Lincoln freed the slaves.
But I assume the question is about the present day, not about 19th or even 20th century.
Did the Ds cheat as much or more than the Rs, once upon a time? You betcha! Some think that JFK beat Nixon in 1960 only because of cheating; and that Dick Nixon conceded defeat for the good of the country rather than pursuing fraud allegations! But that was 62 years ago. The U.S.A. is not the same place now as it was then.
In recent decades, the Ds have increasingly become the Party of humanitarian values, democracy and fair play. The Rs no longer have any principles other than hatred, lying and greed. The Ds have an agenda which, whether smart or stupid, is intended to improve the lives of Americans. The Rs have no agenda but getting elected so they can keep stuffing their donors' pockets with loot.
Does this help?