TIL: As of July 2017, members of Congress can use campaign funds for home security.

The only apparent limitations are that upgrades must be fair market price, and not improve the structure of the home. I'm no lawyer, but even I can see some nifty loopholes. Perimeter motion and pressure detection? No sweat. Want 45 hybrid thermal-UV wide angle lenses? Done. Biometric door locks with two-factor authentication? You got it! Panic buttons with backup power supplies and multi-frequency satellite connectivity? YOUFUCKINBETCHA! Oh yeah, and you can salary a team of people to monitor all that stuff too. Source: https://www.fec.gov/updates/ao-2017-07-use-campaign-funds-security-system/