The funny thing about this clip is that a) Obama talked more like a law professor than a "normal person" (whatever that actually means), b) and the main reason he was elected president is that in 2008, people hated George W. Bush and the GOP, and in 2012, the economy was in strong enough shape that he won reelection. Talking like a "normal person" might have helped around the margins, but it's not why he won two presidential elections.

President-elect George W. Bush paying tribute to Al Gore in his Victory Speech, 2000.