They made up these fake scandals because Joe was expected to be the nominee/was the nominee. They would have made up fake scandals for anyone. And as fake scandals go, I don't expect this one to be at all effective.
It's a completely nonsensical conspiracy theory that you have to be immersed in the Fox Extended Universe to understand, relies on convincing people that a much more popular president (Obama) was doing shady shit, does not connect to anyone's lives, and ultimately comes to "look at how mean they were to Trump and Mike Flynn"
The real Russiagate wasn't moving a ton of votes. I see no reason to believe a fake version will.
I wonder what you are going to say when Joe Biden confesses to blackmailing Ukraine at a debate.
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September 1, 2003; November 4, 2007; September 2, 2013 Congratulations to DP Oblivion in the Guru Contest!