According to officials in Washington, her resignation is expected to take effect on Monday.
The Democratic congresswoman was shot in the head last January as she was meeting with constituents outside a supermarket in Tucson, Ariz. While her recovery has seemed remarkable, she says on Facebook she has more work to do to recover, and it is best from her state if she resigns her seat in the House.
Her shooting prompted an agonizing national debate about super-charged rhetoric in political campaigns.
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