Impeachment without removal from office by senate is same as premature withdrawal. It has no lasting effect.
Note the Rats need 20 senate republicans to defect. How realistic is that?
Not at all. Assaulting POTUS and those who support him for the next year with an impeachment circus greatly benefits the Uniparty.
I consider it RBG insurance. If Trump is under formal impeachment, they will argue a POTUS under impeachment can not nominate SC justice. Even if that argument is not successful it will buy them time, they can drag impeachment hearings out for months.