let s go to cnn senior national correspondent: Live & Latest News Updates : Vimarsana.com

are expected momentarily in one of the key races that will determine control of congress. we're following all of the contests that remain up in the air tonight as the country awaits the final midterm results. let's go to cnn's senior national correspondent sara sidner. she's in phoenix, arizona, maricopa county. sara, what's the latest you're hearing? >> look, we have about 15 minutes before we're expecting to see another significant drop that you will see of votes. in other words, these are votes that have been counted. they were early mail-in votes from friday, saturday, sunday, that have been counted. could be anywhere up to 89,000 potential votes that come in. that isn't a significant number, as you know. about 1.6 million votes in this county. this is the most populated county in all of arizona. so, you've got that situation going on here. there are still election workers of course here.