The creator of "Downton Abbey," a conservative member of Britain's House of Lords, says he considers Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE a "more convincing world politician" than the rest of the 2016 White House hopefuls.

Julian Fellowes tells CNN's Michael SmerconishMichael SmerconishTrump attacks former DHS secretary over criticism of federal crackdown Former Homeland Security secretary says DHS not meant to be 'president's personal militia' Klobuchar to be next guest on Biden's podcast MORE in clips released Tuesday, "I think [Clinton] has a grasp of the political language, what's happening in the world, where others seem — without naming any names — seem rather insular in their approach."

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Fellowes, executive producer of the popular PBS British period drama, which premieres its final season on Sunday, adds of the Democratic front-runner and former first lady, "When she first was in the White House as Mrs. Bill, I think she seemed less broad-minded and seem to have less of a grasp than she has now. But now, after she's been secretary of State and everything, she seems to me a stateswoman.

"And I also feel, as much as I'm allowed to have an opinion about America's government, to see a woman president — it's about time."

Fellowes isn't as quick to praise the GOP presidential race's leader, Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE.

"While I'm sure Mr. Trump has many merits and of course great skills and talents in the ways he's managed a career, whether he is exactly how I'd define a politician is perhaps something that I don't know I have anything useful to say on," he says.

The full interview with Fellowes airs Saturday on "Smerconish" on CNN.