1. Rudy Giuliani:"He is someone who could excite the right wing of the Republican Party... I would suggest Marco Rubio"
2. Jeb Bush says he personally lobbied Romney to pick Rubio.
3. Karl Rove
4. Terry Branstad:"Well, Marco Rubio sounds pretty good to me."
5. Mitch McConnell
Andrew Kaczynski is a political reporter for BuzzFeed News and is based in New York.
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