Kaine Mocks Trump For Confusing Him With a New Jersey Politician

VP candidate said Trump's trying to “learn on the fly” as he runs for president.

“If you don’t know there’s 50 states and New Jersey and Virginia are different, and you’re trying to run for president and learn that on the fly, Lord help you,” Kaine told Muir in an interview airing today on "World News Tonight."

But Kaine countered Trump's attempted walk-back: “I don’t think that Russia comment was sarcastic,” he said.

Kaine, who was described by a Senate colleague this morning as someone who doesn’t trash talk, has nevertheless not shied away from attacking Trump.

In remarks to the Missouri delegation at a Democratic National Convention breakfast this morning, Kaine said he doesn’t view his jabs at Trump as trash talk.