Story highlights Lewandowski says his "personal relationship" will decide his VP pick

He touted Mike Pence and Newt Gingrich's credentials

Washington (CNN) Donald Trump's vice presidential selection will "come down to one person's comfort level" -- Trump himself -- former campaign manager Corey Lewandowski said Sunday.

Lewandowski -- who Trump fired this month -- touted the credentials of both Indiana Gov. Mike Pence and former House Speaker Newt Gingrich as people with strong ties to Washington, in an interview with Brianna Keilar on CNN's "State of the Union."

"If you look at Gov. Pence, he's the type of person who could help unite the party, obviously, at the convention," Lewandowski said, pointing out Pence's time as the House Republican Conference chairman. "He's the type of person who would bring a lot to the ticket."

"It's really going to come down to the personal relationship that he and Mr. Trump could have to find out if they could work well together, and if so, if that's Mr. Trump's choice, I think Gov. Pence would be a great choice for vice president," said Lewandowski, a CNN political commentator.

He emphasized the importance of Trump tapping a politician with ties to Washington, who could help advance his legislative agenda in Congress.

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