Gender bias in the application of the death penalty?

The Atlantic provides a round-up of opinions about gender bias and the death penalty. The collection of stories is prompted by recent events in Virginia:

On Thursday night, Virginia executed 41-year-old Teresa Lewis. It was the first time a woman was executed in the state since 1912 and the first time any woman was executed in the U.S. in five years.

Overall, the death penalty issue seems to be low on the list of priorities these days. How many politicians this election season will be running on platforms based on crime and law and order issues?