CNN —  

Republican National Committee Chairman Reince Priebus said Monday that presumptive GOP presidential candidate Donald Trump’s running mate should reflect diversity, be of age, gender or ethnicity.

“There has to be a degree of diversity on the ballot. Now whether it be a diversity of age, or whether it be a diversity of gender, or ethnic background, somehow or another, diversity is important in some respects,” Priebus told Hugh Hewitt on his radio show. “But obviously, it’s not my decision … but I do think they’re going to take their time and do it right.”

READ: CNN’s GOP Veep shortlist

Hewitt, riffing off vice-presidential speculation, added: “God bless Newt Gingrich and Sarah Palin, but we need somebody young.”

Priebus also noted that since Trump, a first-time candidate, has embodied the spirit of a Washington outsider, he should also consider pairing with a “real seasoned veteran.”