Donald Trump's running mate Gov. Mike Pence defended Trump's comment on being "sarcastic" when claiming President Obama was the "founder" of the Islamic State.

"Isn't the sarcastic excuse getting a bit old?" "Fox News Sunday" host Chris Wallace asked the Indiana Republican in an interview that aired Sunday. In addition to citing Trump's comments on the Islamic State, Wallace also referenced Trump's claiming he was being sarcastic when he asked Russia to hack Hillary Clinton.

"I don't think it's getting old at all, Chris. Donald Trump made his way through a very competitive primary because he spoke not like your typical politician," Pence explained.

Trump, Pence claimed, speaks "plainly," which connects with the everyday Americans.

"Speaking plainly is exactly what the American people will anticipate in the course of this election," Pence said. "But more importantly, they're going to have a president who tells them exactly what's on his mind."

Pence added that Trump's claim that Obama founded the Islamic State was a serious one.

"He was being very serious, and he was making a point that needs to be made," he said. "There is no question that the failed polices of President Barack Obama and Secretary of State Hillary Clinton in the wider Middle East created a vacuum within Iraq which ISIS was able to rise."