Why are you people arguing over houses?
1. He works in DC and, by law, must have a residence in the state he represents, ie. Vermont. So having two homes is almost a requirement for a senator. Unless he represents a state close to DC. Vermont is not close to DC.
2. The man makes $174,000/year as a senator. Most people do not make anywhere near that so owning a home is harder, much less two or three.
3. He has lived in Vermont since 1968. If he bought a house then, he'd have paid it off(30 year mortgage) by the time he was elected into the us house. So buying a second home, not an issue. And a vacation home, on a us congressman salary? Not a big deal.
4.
https://www.dailymail.co.uk/news/article-8025835/amp/Take-peak-best-known-millionaire-socialist-Bernie-Sanders-three-homes.htmlHis homes. A main home he's owned probably since before being mayor of the town he lives in. Or maybe at the same time, dunno.
His second home is a one bedroom apartment in DC. Where he works. So not a house.
His third is a small lake side cabin costing about $567,000.