American English Speech online course

 https://oli.cmu.edu/courses/american-english-speech-open-free/

President Obama's speech

 https://www.americanrhetoric.com/speeches/barackobama/barackobama2015prayerbreakfast.htm

litany

 when I went through my litany - ladainha

a series of petitions for use in church services or processions, usually recited by the clergy and responded to in a recurring formula by the people.

Happen "I don't happen so fast"

I happen to be president

Mr Slave and the President - YouTube

something by chance (adivinhar)

• You don't happen to know his name, do you?

accolades

 accolades - elogios

ech·e·lon

 ech·e·lon

/ˈeSHəˌlän/

escalão

discipline - disciples

 discipline

disciples - "dissáipols"