An anon made this petition on Whitehouse.gov to reveal the citizenships of not only congressmen but federal judges and executive appointees as well!
The site itself says:
>100,000 Signatures in 30 Days
>Get an official update from the White House within 60 days.
Only 136 signatures so far:
https://petitions.whitehouse.gov/petition/dual-citizenship-public-officials-creates-conflicts-interest