vine with small purple flowers
It looks like Bittersweet Nightshade, Solanum dulcamara. It's a member of the tomato/potato family as you can see by the shapes of the leaf and flowers. http://turfweeds.cals.cornell.edu/plant/identify/253
The fruit and leaves are toxic to humans and livestock.
For more info: https://www.co.jefferson.wa.us/DocumentCenter/View/2946/Bittersweet-Nightshade
Thanks so much for the information! I really appreciate your time and expertise!
I'm going to read up on this plant right now.