10 Things to Know for Friday

By The Associated Press | August 8, 2015 | 12:55 PM EDT

Republican presidential candidate, Sen. Marco Rubio, R-Fla., greets supporters after speaking at a rally at Town Hall in Cleveland, Wednesday, Aug. 5, 2015, before Thursday's first Republican presidential debate being held at the Quicken Loans Arena. (AP Photo/Andrew Harnik)

Your daily look at late-breaking news, upcoming events and the stories that will be talked about Friday:

1. GOP DEBATE PLAYS OUT, WITH UNSETTLED BACKDROP

The party faces a tug of war between those eager for a candidate with broad general election appeal and those who think the key to winning is nominating a fiery conservative.

2. LAST LAUGHS FOR JON STEWART AT 'THE DAILY SHOW'

During his 16 years as host, the comedian turned a sleepy basic-cable entertainment program into a powerful cultural platform.

3. NUCLEAR DEAL WITH TEHRAN COULD OPEN TRADE DOORS

Businesses worldwide want to get into Iran, home to some 80 million people and a sizable middle class craving U.S. brands.

4. LEAKED EMAILS POINT TO DIRTY TRICKS

An AP investigation finds compelling evidence that the government of Ecuador hacked email and social media accounts belonging to an opposition activist.

5. WHAT'S ANGERING MUSLIM GROUPS IN US

They say there are too many secrets surrounding an Obama administration program aimed at countering homegrown terrorism.

6. SUICIDE BOMBING KILLS 15 AT MOSQUE INSIDE POLICE COMPOUND IN SAUDI ARABIA

The deadliest attack against Saudi security personnel in years is likely to pull the kingdom deeper into the regional war with Islamic State extremists.

7. HOW EFFORT TO REPLACE OUT-OF-DATE CREDIT CARDS IS PROCEEDING

Even with an Oct. 1 deadline approaching, only about one in 10 Americans have received their new chip-enabled credit cards, an AP-GfK poll shows.

8. SENATE PANEL URGES CRACKDOWN ON AIRLINE FEES

There appears to be no connection between checked bag fees and the costs incurred by the airlines that impose them.

9. WHO'S TURNING TO TWITTER TO BREAK DOWN STEREOTYPES

Tens of thousands of people — nerds and others — using the hashtag #ILookLikeAnEngineer post photos of themselves to promote gender diversity in technology.

10. ACTOR'S PLANE CRASH BLAMED ON CARBURETOR PROBLEM

The malfunction allowed too much fuel to flow, cutting engine power in Harrison Ford's vintage aircraft, investigators say.