Table:
text: United States presidential election in Louisiana, 2008
By
By
Parish Obama__1 Obama__2 McCain__3 McCain__4
Acadia 26.77% 7028 73.23% 19228
Allen 31.34% 2891 68.66% 6333
Ascension 31.89% 14620 68.11% 31225
Assumption 44.30% 4756 55.70% 5981
Avoyelles 38.20% 6327 61.80% 10234
Beauregard 22.27% 3071 77.73% 10718
Bienville 48.73% 3589 51.27% 3776
Bossier 27.97% 12701 72.03% 32706
Caddo 51.45% 55220 48.55% 52105
Calcasieu 37.48% 30227 62.52% 50431
Caldwell 23.22% 1118 76.78% 3696
Cameron 16.56% 613 83.44% 3089
Catahoula 32.24% 1659 67.76% 3486
Claiborne 44.65% 3025 55.35% 3750
Concordia 39.92% 3766 60.08% 5668
De Soto 43.23% 5241 56.77% 6882
East Baton Rouge 51.06% 99431 48.94% 95297
East Carroll 64.39% 2267 35.61% 1254
East Feliciana 44.66% 4383 55.34% 5431

Question: What was McCain's percentage when Obama had 64.39% of the vote in the 2008 United States presidential election in Louisiana?