Why does Lewis begin his speech with humor?

The speech president kennedy's report to the american people uses logos, ethos, and pathos, which are

Explain what effect the repetition of the lines brennan on the moor, brennan on the moor, bold and undaunted stood young brennan on the has on the meaning of the poem. answer asap. you!

How does the narrator describe her parents treatment of nnamabia following his various crimes and wrongdoings