Prominent US conservative William Kristol has been called a “Renegade Jew” for supporting an independent bid for the presidency to stop presumptive Republican candidate Donald Trump from winning the election in November.

Above an article posted on news site Breitbart - which has long supported Mr Trump’s bid to become president - the headline reads “Bill Kristol: Republican Spoiler, Renegade Jew”.

Writer David Horowitz referred to Jews six times throughout the article - all in the last paragraph.

He accused Mr Kristol of “weaken[ing] the only party that stands between the Jews and their annihilation, and between America and the forces intent on destroying her,” adding that this was “a political miscalculation so great and a betrayal so profound as to not be easily forgiven.”

The choice of headline created a stir online, with “Renegade Jew” trending on Twitter today - though mostly through users making fun of it.

Harry Enten, a political forecaster, tweeted: “I called my mother only once not twice yesterday. #renegadejew,” while New York Magazine editor Jesse Singal wrote: “His parents wanted him to go to law school. He taught meditation instead. Renegade Jew: coming summer 2017.”

Mr Kristol, who founded and edits a conservative magazine called The Weekly Standard, has been vocal in his opposition to Mr Trump since he began his campaign for the nomination.

Last week, the conservative pundit told US television channel MSNBC that when it comes to Mr Trump, “unification means capitulation,” while yesterday he tweeted that “defending Trump really is a recipe for sounding like a fool.”