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AMES, IA - JANUARY 19:   Former Alaska Gov. Sarah Palin speaks at Hansen Agriculture Student Learning Center at Iowa State University on January 19, 2016 in Ames, IA. Palin endorsed Donald Trump's run for the Republican presidential nomination.  (Photo by Aaron P. Bernstein/Getty Images)
AMES, IA - JANUARY 19:   Former Alaska Gov. Sarah Palin speaks at Hansen Agriculture Student Learning Center at Iowa State University on January 19, 2016 in Ames, IA. Palin endorsed Donald Trump's run for the Republican presidential nomination.  (Photo by Aaron P. Bernstein/Getty Images)

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Palin on her political future: 'It's not over for me'

Former Vice Presidential candidate Sarah Palin talks with CNN's Jake Tapper about her political future and her son's struggle.

Palin on her political future: 'It's not over for me'

Former Vice Presidential candidate Sarah Palin talks with CNN's Jake Tapper about her political future and her son's struggle.