The father of former FBI Director James Comey spoke out against President Trump's decision to fire his son, calling into question the president's sanity, according to a report Friday.

Comey was fired earlier this month, amid his agency's investigation into potential ties between the Trump campaign and Russia.

Following his ouster, Trump reportedly referred to Comey as both a "nutjob" and "showboat," painting him as unethical and inept for the job. However, in Comey's hometown of Allendale, N.J., former classmates, childhood friends and family view him as anything but.

"I never was crazy about Trump," J. Brien Comey, a Republican and father to James Comey told NorthJersey.com. "I'm convinced that he's nuts. I thought he belonged in an institution. He was crazy before he became president. Now he's really crazy."

Comey's father also told reporters that his son is a level-headed man with a good sense of ethics who regularly attended Mass at the local church with his family while he was growing up.

Classmates and childhood friends from Allendale also came to his defense.

"Anyone from Allendale that knows the family and grew up around him knows that he is a good person and has an honest character and has the utmost integrity, Patty Corn, former classmate of Comeys told NorthJersey.com. "That doesn't leave you."

The Senate Intelligence Committee announced on Friday evening that Comey has agreed to testify in an open hearing. In a leaked memo from Comey, he reportedly said Trump had pressured him into ending an investigation into former national security adviser Mike Flynn.