That being said, the budget is not the same as any ole other legislation. It is the financial blueprint of the government and sets its direction for the year. You cannot be a member of the government party and vote against its budget. Bill Casey was correct to vote against the budget if he truly believes it harms his constituency, however the party was absolutely correct to boot him from caucus for doing so.
It's just the way the budget vote works.
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Refresh my memory...Has Bill Casey announced he isn't running again? This is not a totally relevant question, however it would be just a little facetious to make the play if you're not planning to stay.