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KNOW IT ALL: Thursday's Top 7 Stories at NBC News

From Caitlyn Jenner's ESPY Award speech to Obama defending the Iran nuclear deal, see the stories we're following today.

Good morning. Here are some of the stories we're following today:

1. Caitlyn Jenner Accepts ESPY Award for Courage

The legendary Olympian stood on a stage in front of some of the country's biggest sports stars and celebrities Wednesday and issued a challenge to accept transgender people for who they are. "Trans people deserve something vital. They deserve your respect," Jenner said at the ESPY Awards in Los Angeles, where she accepted the Arthur Ashe Courage Award a month after announcing her transition to a woman. Read more in SPORTS.

2. George H.W. Bush, 91, Breaks Neck Bone in Fall

The 41st president broke a bone in his neck in a fall at his Maine summer home on Wednesday, according to his spokesman. The former president uses a wheelchair because he has Parkinson's disease. Read more in NEWS.

3. Obama: Iran Nuke Deal Makes Our Country, World Safer

President Barack Obama fiercely defended the historic nuclear deal with Iran on Wednesday, telling reporters that "this deal makes our country and the world safer and more secure." Six world powers, including the United States, reached the agreement on Tuesday. Obama said he is keenly aware that it will take work to convince U.S. lawmakers, especially those who have expressed deep skepticism, to support the agreement. Read more in POLITICS.

4. Greece Accepts Austerity Measure for Bailout

There was sweat, blood and tears on the streets of Athens early Thursday as violent clashes broke out while the Greek parliament voted to accept austerity measures that are a condition of a third bailout. In the early hours of Thursday, the reform bill that will pave the way for financial aid worth $94 billion was approved with 229 votes in the 300-seat chamber. Read more in NEWS.

5. Obama Weighs in On Bill Cosby Scandal

The president answered a question about comedian Bill Cosby on Wednesday by saying that no civilized country should tolerate rape. Obama, at a White House press conference, added that there was no way to revoke the Presidential Medal of Freedom from Cosby, who has been accused of sexual assault by dozens of women. Read more in POLITICS.

6. Women Boost Clinton’s Campaign War Chest

Democratic presidential contender Hillary Clinton got an influx of cash in the first three months of her campaign thanks to her female supporters — representing more than 60 percent of the donors, a new campaign finance report shows. More than 250,000 people contributed to the former secretary of state, according to her campaign — and 61 percent were women. Read more in POLITICS.

7. ‘Empire,’ ‘Mad Men,’ Letterman Vie for Emmy Noms

Six months after the Oscars featured an all-white cast of acting nominees, television's Emmy Awards is poised to show its big-screen Hollywood sibling how diversity is achieved. Nominees in top categories are to be announced Thursday morning at 11:30 a.m. ET by Uzo Aduba, an Emmy winner last year for her "Orange is the New Black" role. Read more in POP CULTURE.

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