Why Democrats are gearing up to oppose a bill to curtail stock trading in Congress

"This bill is a scam. It is not a congressional stock trading ban," Rep. Alexandria Ocasio-Cortez told Business Insider.

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• A GOP-backed bill to curtail stock trading by members of Congress is set to get a House vote soon.
• Democrats are expected to oppose the bill, saying it doesn't go far enough and has loopholes.
• AOC called the bill a "scam" that's "written precisely for the wealthiest members of Congress."

The...