‘This Week’ Transcript: Carly Fiorina

— -- THIS IS A RUSH TRANSCRIPT FOR "THIS WEEK" ON JULY 12, 2015.

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ANNOUNCER: Starting right now on ABC's THIS WEEK, final countdown -- an historic deal with Iran in reach.

But as the clock ticks down, could the negotiations still fall apart?

Martha Raddatz is inside Iran this morning.

Then, 2016 drama -- Trump's rallying cry on immigration, Jeb's eye-popping fundraising and Hillary's first national close-up. The other woman in the race, Carly Fiorina, is here live.

Plus...

UNIDENTIFIED MALE: You never really understand a person until you consider things from his point of view.

UNIDENTIFIED MALE: What if Atticus Finch is a racist?

The shocking revelation in "To Kill A Mockingbird's" brand new sequel.

FROM ABC NEWS, THIS WEEK with George Stephanopoulos begins now.

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GEORGE STEPHANOPOULOS, ABC HOST: And as we come on the air this morning, those marathon talks to keep Iran from getting a nuclear weapon may finally reach their end.

After years of jockeying, 15 days straight of negotiations, the next day appears to be make or break. Hopes for a deal highest in Iran this morning.

And our Martha Raddatz is live on the scene in Teheran -- good morning, Martha.

MARTHA RADDATZ, ABC NEWS CORRESPONDENT: Good morning, George.

This could be a country on the brink of change. A high-ranking Iranian official telling us just a short time ago she is quite optimistic that a deal will come in the next 24 hours.

In Vienna, where negotiators have been huddled for more than two weeks, Secretary of State John Kerry told reporters this morning he had a positive meeting with the Iranian negotiator.

But there are still a few tough things to figure out, although the Secretary says he remains hopeful.

Major sticking points have been Iran demanding an end to an arms embargo, including on ballistic missiles, and how fast sanctions would be lifted.

This, of course, is a nation that continues to back Syria's dictator, has called for the destruction of Israel and still has several Americans imprisoned here.

We have been here all week talking to the people of Iran, listening, watching. What we found is a nation of contradictions struggling to change.

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RADDATZ (voice-over): Iran is vibrant, chaotic and divided. From the chic Teheran shopping malls where Westernized young women push the limits on the legal requirement to cover their hair...

(on camera): Many years ago, you probably would have been arrested.

UNIDENTIFIED FEMALE: Yes.

RADDATZ (voice-over): -- to the mass marches we saw this week, with the faithful shouting "Death to America!" and any nuclear deal along with it.

UNIDENTIFIED FEMALE: Obama very bad. John Kerry all (INAUDIBLE) are very bad.

RADDATZ: It is a nation in a tug of war. It's emboldened youth population battling against those clinging to the past. It is that divide that has made a nuclear deal so difficult here.

For the hardliners in Iran, it is about religion and history -- the U.S. support of the corrupt former shah led to the seizure of the U.S. Embassy in 1979.

Since the holding of those 52 Americans hostage for 444 days, a deep and bitter mistrust has continued.

But in Iran, the vitriol against the West, and especially against Israel, goes well beyond just words. Over the years, despite efforts to stop them, officials say Iran's ability to build a nuclear bomb has become a very real threat.