There is a bias because of the Progressive Media.
Media favorites can get away with much more, because they are covered for in the Media.
Much easier to cheat in big urban areas. Many more chances, easier to organize and hide.
Big urban areas are more often controlled by Leftists/Progressives. You get a feedback loop.
“Much easier to cheat in big urban areas. Many more chances, easier to organize and hide.”
The absolute proof of this was Miami Dade. DeSantis replaced the supervisor of elections and Florida was called in four hours (12:34 am) after the Panhandle closed to voting.
Trump won Dade by a larger margin and they reported the results quickly. But to the point, urban areas can and do cheat more and can effect state/national elections. So, if an agreement is made in advance, urban areas can still nudge a few races for Republicans to keep their silence.
But remember cheating has been going on for decades. Most historians know that Kennedy did not win his election (Nixon knew it too). The dead in Chicago (Urban) and rural areas in Texas (blue state then) gave Kennedy the victory. There was one county that had around 4,000 residents in Texas, but recorded over 7,000 for Kennedy. So, cheating isn’t confined to rural areas when stealing an presidency.