Very simple, anyone competent could make it through. As long as they have an interest in politics and willingness to learn. Whether you can hang on for the ride after is a whole other story.
Pretty simple and straightforward application process. Applied and got an email scheduling a zoom session for about fifteen to twenty minutes. No cover letter or supporting documents needed, just a resume.
Interview questions [1]
Question 1
Experiences regarding politics and interest in elevation
Relatively easy. Simple call, no longer than 20-30 minutes. Very relaxed. Decision is made after the call within a day or two. The process and turnover time is short, and not intimidating.