Character should always matter when selecting a leader.

donOLD put his on display for the entire world to see:

He nominated three SCOTUS lifetime appointees who PERJURED themselves in their confirmation hearings.
He nominated a rapist to the SCOTUS
He appointed judge fangirl in FL that is unqualified and corrupt
He is a con artist
He is a fraud
He extorted an ally for campaign dirt on Biden
He is a compulsive liar
He stole and disclosed classified documents to reporters and campaign donors.
He obstructed justice
He pardoned criminals who continue to commit crimes
He sold national security in return for a loan from China
He covered up the Saudi role in the murder of a US journalist
He extorted financing from Qatar for Jared
He disclosed national security information to Russian spies
He directed the insurrection attempt to put fake electors in place
He incited the attempt to violently overthrow the free and fair election and get the chain of command murdered.
He is responsible for capitol police and civilian deaths on 1/6

The list goes on and on.