do under secretaries need to be voted on - SERP Analysis

https://presidentialtransition.org/appointee-resources/ready-to-serve-prospective-appointees/frequently-asked-questions-about-the-political-appointment-process/

https://www.congress.gov/crs-product/RL30959

https://www.arnoldporter.com/en/perspectives/advisories/2024/11/a-guide-for-prospective-trump-administration-political-appointees

https://en.wikipedia.org/wiki/List_of_positions_filled_by_presidential_appointment_with_Senate_confirmation

https://www.senate.gov/about/powers-procedures/nominations.htm

https://www.thepolicycircle.org/path-to-cabinet-secretary/

https://www.heritage.org/political-process/heritage-explains/the-confirmation-process-presidential-appointees

https://www.acslaw.org/federal-executive-branch-appointments-project/

https://www.quora.com/If-a-cabinet-member-serves-under-one-president-and-is-asked-to-stay-on-by-a-newly-elected-president-do-they-need-to-be-reconfirmed-by-the-Senate

https://wfpg.memberclicks.net/assets/2020/non-senate-confirmed-sample-2016.pdf