U.S. Senator Marco Rubio signs his book at BJ's Wholesale in Florida

01/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

02/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

03/19

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People queue as U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

04/19

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People wait in line for U.S. Senator Marco Rubio (Florida) to sign copies of his new book, "An American Son" at BJ's Wholesale in Orlando, Florida.

05/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

06/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

07/19

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U.S. Senator Marco Rubio enters a book signing in Orlando, FL. His new book is titled "An American Son".

08/19

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U.S. Senator Marco Rubio enters a book signing in Orlando, FL. His new book is titled "An American Son".

09/19

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U.S. Senator Marco Rubio enters a book signing in Orlando, FL. His new book is titled "An American Son".

10/19

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U.S. Senator Marco Rubio (Florida) attends a signing of his new book, "An American Son" at BJ's Wholesale in Orlando, Florida.

11/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

12/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

13/19

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U.S. Senator Marco Rubio (Florida) attends a signing of his new book, "An American Son" at BJ's Wholesale in Orlando, Florida.

14/19

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U.S. Senator Marco Rubio (Florida) attends a signing of his new book, "An American Son" at BJ's Wholesale in Orlando, Florida.

15/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

16/19

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U.S. Senator Marco Rubio (Florida) attends a signing of his new book, "An American Son" at BJ's Wholesale in Orlando, Florida.

17/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

18/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

19/19

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U.S. Senator Marco Rubio signs his latest book for attendees at a book signing in Orlando, FL. His new book is titled "An American Son".

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U.S. Senator Marco Rubio, of Florida, attends a signing of his new book, "An American Son", at BJ's Wholesale in Orlando, Florida. Senator Rubio is a potential running mate for Republican Candidate Mitt Romney.