Why do you think he’ll grow more trustworthy and believable after he spends more years with the snakes in DC, learns more devious tricks and gets more financial strings attached.
Here is how I look at it.
In the corporate world, a good CEO will spend years searching and then grooming his replacement once he/she decides to retire.
Not all quality people make it as CEO.
It requires a different way of thinking.
Back when Andy Grove was CEO of Intel, he began grooming Craig Barrett as his replacement.
Craig had managed multiple fabs and for the most part, did a fantastic job.
When Barrett became CEO, it was very clear that he was a bad pick.
Employee moral plummeted as people were being asked to do really stupid things.
Nearly every decision had to pass thru his office even those fairly trivial.
Joint ventures were made without even consulting design teams which would be effected.
About a year before a major internal revolt, Barrett retired.
It took 5 years to undo the nonsense he implemented.
End result, not everyone is capable of handling the big decisions which come with the big chair.
Same with the President.