I think Cohen’s main crime was tax evasion. When he was caught with that, he tried to get less punishment by trying to implicate Trump who is Mueller’s main target.
He couldn’t produce what Monster Mueller wanted so I’ll bet Mueller threatened him with 20 years unless he pled guilty - meaning LIE - about campaign finance violation. This shoould outrage everybody, pleading guilty something that is not a crime just to make the POTUS look guilty by association. The Republican party can bite me, they do NOTHING and they have both houses and the White house and Democrats for the past 2 years have been steamrolling all over them like they own the place.