Chasing Tail (The Dogmothers #3)
Roxanne St. Claire

Sadie wants no part of helping Connor achieve yet another victory, no matter how smoking hot he is or electrifying their first encounter was. Not only did he steal an election from her in high school, now he's making a mockery of the the position by putting a dog on the ballot. No way she'll help him win. In fact, Sadie is sure that being a small town mayor is exactly what she needs to rekindle her idealism after DC left her disillusioned and disappointed, so she runs against him.
But the opponents are both in for a big surprise when a two-hundred year old law is unearthed to upend the entire election. Then, the only way for Sadie or Connor to beat a third candidate is to join forces in a way no one is expecting. It's crazy, it's sexy, and it will either work or blow up in their faces. As Sadie and Connor discover that the best part of running against each other is literally being against each other, it doesn't take long to figure out that sometimes winning the race means losing your heart.