Story highlights Sean Spicer said the lines being discussed are common phrases

"We're talking about 70 words, three passages," Spicer said

Washington (CNN) Who said it: Melania Trump or Twilight Sparkle from "My Little Pony"?

After Trump's controversial speech from the first night of the Republican National Convention that has some accusing the Trump campaign of plagiarizing passages from a speech by first lady Michelle Obama in 2008, Republican National Convention chief strategist Sean Spicer said the lines being discussed are common phrases.

"We're talking about 70 words, three passages," Spicer told Wolf Blitzer on CNN Tuesday.

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"Melania Trump said, 'the strength of your dreams and willingness to work for them.' Twilight Sparkle from 'My Little Pony' said, 'This is your dream. Anything you can do in your dreams, you can do now,' " Spicer said.

He also compared passages of Trump's speech with phrases from musicians John Legend and Kid Rock.

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