Former presidential candidate John Kasich said Monday he is not ready to back Donald Trump as the presumptive nominee nor will he serve as his running mate because the two Republicans have polar opposite messages.

“We’ve had two different messages. His message was ‘the elites are bad and everybody’s giving you the shaft’ and kind of got the people angry. My message is ‘yea … they’ve all disappointed us one way or another, they’ve all given us the shaft,’ but my message is ‘let’s stand against the wind,'” Kasich told CNN host Anderson Cooper Monday. “Don’t cave in to the negative. Let’s figure out how as people we can rebuild our country.”