The Switzerland-to-Congress story
Switzerland has produced 1 naturalized citizen who went on to serve in the US Congress — 1 in the House of Representatives and 0 in the Senate. None are currently serving; all 1 have since left office. That career began in 1795, during the early Republic. All of them represented PA in Washington.
Switzerland grants limited political rights to foreign-born residents — typically at the local or municipal level — but bars non-citizens from national elections and from serving in its own legislature. Specifically: Federal elections restricted to citizens. Some cantons (Jura, Neuchâtel, Vaud, Fribourg, Geneva) allow foreign residents to vote in cantonal or communal elections.
Every Switzerland-born member tracked here has served as Democratic-Republicans. The contrast with the US experience is sharp. A naturalized American moving to Switzerland might influence a town council vote, but would be shut out of the national legislature — the exact institution this member was sent to represent Americans in. Across the full history of the US Congress, Switzerland ranks 19th of 38 tracked birth countries, accounting for 1 naturalized-citizen lawmaker.
Put plainly: a person born in Switzerland can be entrusted by American voters with a seat in the US Congress, writing federal law for hundreds of millions of people. Yet the reverse path — an American settling in Switzerland — would yield only limited political voice, usually nothing beyond local races. The asymmetry is the story.