Donald is not going to pick anyone who is not a Natural Born Citizen. Rubio was, while being born in Maine, his parents were not naturalized till he was four. He is a naturalized but not natural born citizen.
No way Trump needs an establishment back stabber on the ticket.
If Trump picks one of those DC Politicians to join the ticket, the campaign will probably be sabotaged each step of the way.
Remember what happened to Sarah Palin in 2008. That whole horrible episode was complimentary of the Establishment GOP backstabbers working for her campaign.