Why the latest effort to ban stock trading in Congress is falling flat

Rep. Anna Paulina Luna is trying to force a vote on a bill to ban stock trading. But leaders in both parties have other ideas.

Andrew Caballero-Reynolds / AFP via Getty Images

• A GOP congresswoman is trying to force a vote on a bill to ban stock trading in Congress.
• Dozens of members of Congress have already signed onto her effort.
• But leaders in both parties are coming up with their own proposals, likely dooming the effort.

Dozens of members of Congress have...