Portman and Lazio both came to Congress as part of the 1993 class. While Portman jumped to President George W. Bush's administration in 2005 to serve as its U.S. Trade Representative, Lazio mounted a failed senatorial bid against Hillary ClintonHillary Diane Rodham ClintonTrump touts report Warner attempted to talk to dossier author Poll: Nearly half of Iowans wouldn’t vote for Trump in 2020 Rubio on Warner contact with Russian lobbyist: It’s ‘had zero impact on our work’ MORE in 2000.

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Now an attorney and Romney backer, Lazio said there's no hard feelings after his roomie was passed over in favor of Rep. Paul RyanPaul Davis RyanMcConnell: 'Whoever gets to 60 wins' on immigration Overnight Defense: Latest on spending fight - House passes stopgap with defense money while Senate nears two-year budget deal | Pentagon planning military parade for Trump | Afghan war will cost B in 2018 House passes stopgap spending measure with defense money MORE (R-Wis.).

"He has excellent communication skills and he's absolutely a value added to the ticket," he said of the House Budget Committee Chairman. "This might well prove to be the exception to the oft-repeated rule that vice presidents don’t win anything but their own home state."

He described the 2008 GOP offering of Sen. John McCainJohn Sidney McCainMcConnell: 'Whoever gets to 60 wins' on immigration Meghan McCain: Melania is 'my favorite Trump, by far' Kelly says Trump not likely to extend DACA deadline MORE (R-Ariz.) and former Alaska Gov. Sarah Palin as a "personality ticket," while Romney-Ryan "is more a ticket of competence, record and experience."