Congressman Joaquin Castro (D-TX) thought he only put Trump supporters on blast when he posted a list revealing each campaign donor’s name and employer. Instead, he revealed that one of the same Trump donors was also his donor, according to a Fox News exclusive.

Castro included his own supporter in the list posted to Twitter Monday and his donor was not happy about the stunt.

Wayne Harwell confirmed to Fox News that he’s a donor to both politicians, but won’t be anymore announcing he’s pulling out of team Castro.

“I was also on a list of people that gave to Castro and if he dislikes me enough that he wants to put my name out there against Trump, I’m not going to give money to him,” Harwell told Fox News. “Obviously Castro feels pretty strongly against me.”

Further, Harwell said he disagrees with Castro’s rhetoric suggesting Trump supporters are contributing to “a campaign of hate.”

Castro appeared Wednesday morning on MSNBC’s “Morning Joe” after many Republicans accused him of doxxing. He said it’s a “lament” and not a call to “harass” or “target” Trump supporters. “What I would like for them to do is think twice about a guy who is fueling hate in this country,” Castro explained.

Click here to read the Fox News Exclusive