How about some specifics?
Speaking of grafting and swindling. Here in Washington State's 4th District we had a representative for 20 years. Retired last year. Really did nothing in Congress except get enough seniority to get of the taxpayers money to keep funding Hanford. Since he was in a safe district his campaigns cost next to nothing. I would surmise that when he retired he walked away with a lot of unspent campaign money.
There are 535 of them in Congress right now, with very few exceptions.
Does that qualify as graft and swindling?
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To the extent that your assumption is accurate, it does.