Researchers: Voice Votes Useless
Aye
At the Democratic National Convention in 2012, the leadership wanted two resolutions passed and the chairman asked the 22,000 delegates for voice votes on both. Passing the motions required a two-thirds majority.
He asked for a vote, then two re-votes and even then, the response was ambiguous. The reason, researchers at the University of Iowa in Iowa City found, is that except under unrealistic controlled circumstances, voice votes are useless.