They have been cloning horses (polo & racing) with a lot of success.
Watch a documentary about it - I think it was on 60 Minutes - the guy was asked if it can be done with humans, and he said something to the effect of "yes, but it's illegal or not ethical"
https://www.cbsnews.com/video/the-clones-of-polo/
I would imagine if they can clone horses, they can clone humans too