The Washington Post via Getty Images Donald Trump's running mate, Indiana Gov. Mike Pence, says U.S. voters can look forward to having "a president who tells the American people exactly what’s on his mind."

WASHINGTON ― Amid reports that Republican presidential nominee Donald Trump’s campaign is in a fatal tailspin, his running mate, Mike Pence, defended Trump’s string of gaffes on Sunday and insisted the two could still win.

“I couldn’t be more honored to be standing shoulder-to-shoulder with” Trump, Pence told host Chris Wallace on Fox News.

Last week, Trump called President Barack Obama and Democratic presidential nominee Hillary Clinton the “co-founders of ISIS,” then tried to walk that statement back, describing it as “sarcasm”― a defense Trump’s campaign has used many times to neutralize his offensive comments. Wallace asked Pence whether the “sarcasm” argument was getting old.

“I don’t think it’s getting old at all, Chris,” Pence said. “Donald Trump made his way through a very competitive primary because he spoke not like your typical politician, but just plainly, like your everyday American. And speaking plainly is exactly what the American people will anticipate in the course of this election, but more importantly, they’re going to have a president who tells the American people exactly what’s on his mind. And the American people are going to hear him and hear him loudly.”

Pence said he is still “very confident” that he and Trump can win.

“Stay tuned,” Pence said. “It’s still early in this campaign.”

Editor’s note: Donald Trump regularly incites political violence and is a serial liar, rampant xenophobe, racist, misogynist and birther who has repeatedly pledged to ban all Muslims ― 1.6 billion members of an entire religion ― from entering the U.S.