5 Stories You May Have Missed This Weekend

Martin Dempsey talks to ABC's Martha Raddatz; Harvard prof. announces candidacy.

— -- 1. Harvard Professor Larry Lessig Says He's Running for President

"I think I'm running to get people to acknowledge the elephant in the room," he told ABC News' George Stephanopoulos. "We have to recognize -- we have a government that does not work. The stalemate, partisan platform of American politics in Washington right now doesn't work."

If elected, he says he will be the first "referendum president," promising to serve only as long as it takes to pass his Citizens Equality Act of 2017 -- a bill aimed at reforming campaign finance, voting rights, and Congressional representation. Once the bill is passed, Lessig said he would then step down, handing over the reins to his vice president.

2. Outgoing Joint Chiefs Chairman Martin Dempsey Reflects on His Toughest Day on the Job

"A young man named Tom Kennedy. Just a terrific kid," Dempsey told ABC News' Chief Global Affairs Correspondent Martha Raddatz in an exclusive interview. "Those kinds of days are unimaginable."

3. Supporters of Kentucky County Clerk Kim Davis Rally Outside Jail

Some of the roughly 300 ralliers, including some who traveled from other states, shouted in the hot sun for more than an hour.

One rallier was seen holding a sign that read "No to Sodomite Perversion," while another supporter was photographed holding a sign that said, "Kim Davis for President."

4. Devon Still Waived by Cincinnati Bengals

He's now a free agent and can sign with any other team, according to ESPN.

Still wrote on Instagram: "Have nothing but love for the Bengals organization and the city of Cincinnati. Both helped me through one of the darkest times of my life and I am forever grateful. It's time to move forward and see what's next."

5. Cheetah Escapes From Enclosure at Indianapolis Zoo

The Indianapolis Zoo was put on lockdown Sunday morning after a cheetah escaped from its enclosure, the zoo said.

The cheetah went up behind a fence and to a landscape area between the barrier exhibit and guests, the zoo's Public Relations Senior Manager Judy Palermo said.

The zoo was placed on lockdown, Palermo said, and all guests were held in safe areas with the doors locked until the cheetah could be gotten back into its enclosure. All guests and staff were safe, said Palermo.