Political journalist John Fund says Governor Tim Walz has “proceeded to prove” why he is a self-described “knucklehead”.

Speaking to Sky News Australia host James Morrow, Mr Fund assessed aspects of the US presidential election as well as how Tim Walz fared as Kamala Harris’ running mate.

“He (Walz) himself called himself a knucklehead and proceeded to prove that,” Mr Fund said.

“He returns to Minnesota defeated – he lost his own county.”