OKLAHOMA CITY (AP) - One question to be answered in tomorrow's election in Oklahoma is how large the win will be for Republican John McCain.
The Republican nominee is widely expected to easily defeat Democrat Barack Obama in the Sooner state - the question is - by how much.
Republican officials are predicting either Utah or Oklahoma will provide McCain his biggest margin of victory.
Polls indicate Oklahoma's U.S. Senate race figures to be closer than the presidential contest although incumbent Republican Jim Inhofe is given the edge over Democrat Andrew Rice.
Independent Stephen Wallace is the third candidate in the race.
Four incumbent Republicans and one Democrat were favored to win re-election to their congressional seats.
There are also two Corporation Commission races on the state ballot and four state questions.
Early voting continues from 8 a.m. to 6 p.m. today at election boards in the all 77 counties.
Polls open at 7 a.m. and close at 7 p.m. tomorrow.
(Copyright 2008 by The Associated Press. All Rights Reserved.)