- Campaign finance violations for requesting "something of value" from a foreign national. For it to be a felony, it would have to be proven that the thing asked for was worth more than $25,000. This is clearly related to the 2020 campaign, Giuliani claimed it to be about political research on 2020 opponents, and it would be easy to prove that far more than 25,000 would be required to investigate anything of this nature (and withholding 400 millie would absolutely suggest that it breaks the 25,000 threshold)
- Bribery is an obvious one, and miss me with the assessments of the eye witnesses, they're not legal professionals.
https://www.law.cornell.edu/uscode/text/18/201 There's the statute, have fun. The lynchpin here is similar to above, where there has to be "something of value" offered. Does the investigation count as "something of value".
- Extortion: "obtaining of property from another, with his consent, induced by wrongful use of actual or threatened force, violence, or fear, or under color of official right."
With "official right" defined by SCOTUS as: "the Government need only show that a public official has obtained a payment to which he was not entitled, knowing that the payment was received in exchange for official acts"
Probably obstructed justice about a dozen times as well, but nobody seems to give a **** about that anymore .