GOP hardliners may be the next best hope for banning Congress from trading stocks

Rep. Chip Roy, a frequent critic of GOP leadership, said it's time for him to put his "foot on the gas" for a stock trading ban.

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• There's been little movement in recent years, especially in the House, on banning stock trading.
• That could change this year, with a group of hardline Republicans now pushing the issue.
• "I need to put my foot on the gas a little bit," said Rep. Chip Roy. "Let's deal with it."

For years, lawmakers in both...