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In the 70s and 80s, lefty guitar was much more rare and expensive than right handed guitar. Many contemporary guitarists at the time who come from working class background like Jimmy Hendrix, Eric Clapton, Billy Corgan, and Elvis Costello are all left-handed but play right handed guitar.
From wikipedia
Blinken was born on April 16, 1962, in Yonkers, New York. His father was Donald M. Blinken, a co-founder of the private equity firm Warburg Pincus who later served as the U.S. ambassador to Hungary. Blinken's uncle, Alan Blinken, served as the U.S. ambassador to Belgium.
Of course
Itās more a mark of his Christian nut job father who insisted on him playing right handed in spite of being left handed.