gistfile1.patch

diff --git a/opendebates/views.py b/opendebates/views.py
index b388b09..f424874 100644
--- a/opendebates/views.py
+++ b/opendebates/views.py
@@ -21,7 +21,8 @@ from .models import Candidate, Category, Flag, Submission, \
 from .router import readonly_db
 from .utils import get_ip_address_from_request, get_headers_from_request, choose_sort, sort_list, \
     vote_needs_captcha, registration_needs_captcha, show_question_votes, \
-    allow_voting_and_submitting_questions, get_local_votes_state, get_previous_debate_time
+    allow_voting_and_submitting_questions, get_local_votes_state, get_previous_debate_time, \
+    get_voter
 # from opendebates_comments.forms import CommentForm
 from opendebates_emails.models import send_email
 
@@ -215,8 +216,9 @@ def vote(request, id):
             }
     state = state_from_zip(form.cleaned_data['zipcode'])
 
-    if request.user.is_authenticated():
-        if request.user.email != form.cleaned_data['email']:
+    session_voter = get_voter()
+    if session_voter:
+        if session_voter['email'] != form.cleaned_data['email']:
             # this can only happen with an manually-created POST request
             return HttpResponseBadRequest('Incorrect email for user')