in our rockie mountain newsroom tonight where 59% of all voters have requested mail-in ballots. that s a record. how is it effecting the races there in denver and beyond? well, shep, it makes them more expensive. one candidate here told us he figures he has to peak with voters by october 12th. that s when the ballots are mailed out and he has to maintain that as the votes are pouring in and that means spending more cash on tv ads now. they also have to keep their volunteer base energized and convince voters to send those ballots back asap. the secretary of state s office tells us by election day morning most of the votes are already. in shep? shepard: campaigns know how they are doing? well, as the ballots are received, they are scanned but not tabulated and that information is public. the campaigns can do internal polling call voters and ask them what they did. to be clear, official results aren t released until after the polls close on election day.