What would happen if Vitter’s absence turns out to be decisive in a key vote on the war?

WASHINGTON - A woman accused of running a Washington prostitution ring placed five phone calls to David Vitter while he was a House member, including two while roll call votes were under way, according to telephone and congressional records.
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Lawmakers often spend only seconds or minutes to vote in the House chamber and then leave to make calls, check messages or chat with aides or colleagues.