India, June 1 -- Former Vice President Mike Pence has issued a warning about the direction of the Republican Party, arguing that there is a growing internal split over its core identity.

In recent televised interviews promoting his new book, Pence said he believes "there's a new threat to that historic conservatism in the Republican Party . from the populist right," reported by the Daily Mail.

Pence said his motivation for writing the book, What Conservatives Believe: Rediscovering the Conservative Conscience, was to defend traditional conservative principles, which he believes are being challenged by newer policy directions within the GOP.

In comments targeting the ideological shift under President Donald Trump, Pence criticized what ...