Former secretary of state Hillary Rodham Clinton (Charles Dharapak/Associated Press)

A super PAC drumming up support for the prospect of Hillary Rodham Clinton running for president in 2016 is making a new pitch: It's called "The Hillary Bus."

The group, Ready for Hillary, plans to have a bus tour the country this summer. It will initially follow the former secretary of state as she travels the country to promote her memoir, "Hard Choices," which is due out next week. It will also serve as a "mobile advertisement" and a way to reach out to supporters, the group said.

"Throughout the summer, the Bus will also visit Democratic events, state fairs and community festivals, followed by college campuses and key midterm states in the fall," the group said in a release.

The bus has its own Twitter account. It dispatched its maiden tweet Wednesday: