Centennial, Colorado - 26 September, 2016

1. Wide of gathering to watch the presidential debate

2. People sitting, watching

3. Close, viewers

4. Viewers calling out 'Where's Lester? (debate moderator Lester Holt) He's lost control!'

5. SOUNDBITE: (English) Philip Cafaro, college professor, independent voter

"Neither of them made the sale and I'm not sure anyone will be able to but I guess I'm feeling a little bit better with the idea that one of them is going to be my next president.''

6. People watching debate

7. SOUNDBITE: (English) Linda Gorman, economist, independent voter

"I have more sympathy for people who want to move to Canada to avoid whoever is elected, listening to them for four years, as I have just had eight years of listening to Obama."

8. People watching debate

9. Lobbyist Aly Schmidt watching the debate

10. SOUNDBITE: (English) Aly Schmidt, lobbyist, registered Republican

"I'm a registered Republican but I've actually been pretty unimpressed overall with both candidates."

Atlanta, Georgia - 26 September, 2016

11. People watching in restaurant

12. Close, Trump on TV

13. Man watching

14. People at table

15. SOUNDBITE: (English) Erica Thomas, Mableton, Georgia resident

"It's a very scary thing. With all the things that are going on in the black community in America, for him to say that 'stop-and-frisk' was an amazing thing - and, still is an amazing thing - was, it was just a very bad move on Trump's part, especially if he's trying to get the African-American vote."

16. Clinton and Trump on TV

17. SOUNDBITE: (English) Wade Ivy, Atlanta resident

"I think it gets closer. I don't know if that's possible because most of the polls say that it's already a neck-and-neck race. I don't think that Hillary Clinton did herself a lot of favours tonight. I don't think Donald Trump did a particularly great job, either."

State College, Pennsylvania - 26 September, 2016

18. Students walking past election balloons

19. Students speaking before debate

20. Various of students

21. SOUNDBITE: (English) Kaitlyn Ferensic, Penn State University student

"It pointed me in the direction that I think I know who I'm going to vote for now. Clinton seemed very programmed, like she was reading off of something, even though obviously she wasn't, but it seemed very robotic, and I thought Trump was very passionate and natural and I think that's who I'm going to vote for now."

22. Students watching

23. Student practicing baseball swing while watching

24. SOUNDBITE: (English) Chris Baker, Penn State University student (Trump supporter)

"I have found that a great deal of people who are joining our group are former liberal students. I was a former Bernie Sanders supporter, I have worked on a Democratic senate campaign in Pennsylvania."

25. Students watching

Millions of people in the United States and around the world watched Monday night's Presidential debate between Hillary Clinton and Donald Trump.

People in Colorado, Georgia and Pennsylvania were among those who gathered, and voiced their opinions afterwards.

The televised face-off was the most anticipated moment in an election campaign that has been historic, convulsive and unpredictable.

The candidates entered the debate locked in an exceedingly close race to become America's 45th president, and while both had moments sure to enliven their core constituencies, it was unclear whether the event would dramatically change the trajectory of the race.

The debate was confrontational from the start, with Trump frequently trying to interrupt Clinton and speaking over her answers. Clinton was more measured and restrained, often smiling through his answers, well-aware of the television cameras capturing her reaction.