No crime is needed. The founders said high crimes and misdemeanors. They felt a guy doing lesser wrongs also should be booted out. They thought it was an office that should have an honorable man holding it. That is not Trump. I posted Lindsey saying no crime is needed a few times.
Ukraine was under terrible pressure. They were in a shooting war with Russia and Trump held up their military aid. They need the US to survive,. There was no way Zelensky could tell the truth. The risk was too great. Trump quid poro quoed his ass off. Asking him to investigate Biden was a benefit to one man on the planet. See if you can figure out who that is.