It seems Senators need Police escorts
https://twitter.com/pdmcleod/status/1096150174232203266
Supreme Court to Hear Case on Census Citizenship Question
https://www.nytimes.com/2019/02/15/us/politics/supreme-court-census-citizenship.html
California could lose billions in funding, several Congressional seats, and 3 electoral votes
The National Emergency nullifies the poison pills you are worried about.