He also wants some free time to enjoy life before he becomes our next County Judge for the next 10 years. We will also have a new District Attorney within the next 6 months.
With all due respect, that answer is nonsensical.
The election is in November.
The winner doesn't take office until approximately two months later (January).
If, as you say, Cook wanted time off before taking office, he could take off a full two months after the elections (and be secure in the knowledge he was about to make nearly $200k per year).
Instead, however, you want us to believe he quit a "part time" job now, even before the primary, because he needs a break?
Either Cook is a delicate flower who can't handle the stress of a campaign (doubtful) or you're just making things up to explain a loss of employment.