5 Things To Know This Morning

Aug. 31, 2012 — -- Your look at the five biggest and most buzz-worthy stories of the morning.

1. Isaac Downgraded, Moves Through Mid-Mississippi Valley
Isaac was downgraded to a post-tropical low pressure moving through the Mid-Mississippi Valley late Thursday night. Kiln, Ms. received the highest reported rainfall with just over 17 inches. Isaac dumped about 10 inches of rain on New Orleans, more than the city got during Hurricane Katrina.

2. Eastwood Ignites RNC Crowd
Clint Eastwood took the stage to a roaring crowd at the Republican National Convention on Thursday night. The actor ad-libbed a conversation with an invisible President Obama after it he was revealed as the Convention's mystery guest.

3. Poll: 1 in 4 Registered Voters Possibly Persuadable
One in four registered voters may be persuadable in the 2012 presidential election, according to analysis of an ABC News poll. Those persuadable voters, identified in the analysis, are less apt to be ideologically committed ones and are likely to hold more middle-ground views on major political issues.

4. Dozens of Harvard Students Investigated for Cheating
Dozens of students at Harvard University are being investigated for cheating after officials at the school found that they might have shared answers or plagiarized on a final exam. Harvard school officials said that possible cheating was suspected in roughly half of the take-home exams taken in the undergraduate class with a minimum of 250 students.

5. SEAL Author Could Face Legal Action
The Pentagon has told the SEAL who wrote the book on the Osama bin Laden raid that he could face legal action for violating his non-disclosure agreement to not release classified information. The SEAL wrote the book "No Easy Day" under the pseudonym "Mark Owen."