Fox’s largest and second-largest shareholders may agree on management of 21st Century Fox assets, but of a certain outspoken Republican presidential candidate, they have very different opinions.

Prince Al Waleed Bin Talal on Friday called the GOP frontrunner Donald Trump “a disgrace” who doesn’t stand a chance of being elected.

Trump retorted that the prince is using “daddy’s money” to control U.S. politicians and “can’t do it when I’m elected”.

Here are their respective tweets:

The prince is a longtime backer of Fox Chairman and CEO shareholder Rupert Murdoch who has said that some of Trump’s positions make sense. Al Waleed’s 6.6% stake in 21st Century Fox is worth in the neighborhood of $1.7 billion, and he’s the second largest shareholder. 21st Century Fox maintains a 19% stake in Al Waleed’s media group Rotana.