Comment by deepsquirrelnet

You're linking an article showing how everybody in modern times who uses the term "uniparty" is using it to further their own political interests...

Beyond just that, if there is a uniparty, then why is Elon spending half a billion dollars in electoral races?

It's not that there's a uniparty, it's that as a result of Citizen's United, parties don't need to represent you anymore. They represent their money donors instead. Money is speech now, and as the wealth disparity grows it becomes a bigger megaphone and drowns out the voices of hundreds of millions.