Michael Cohen, Donald Trump’s former lawyer, will for the first time publicly accuse the president of criminal conduct while in office related to a hush-money payment to a porn star, a person familiar with his planned testimony before Congress said.

Appearing on Wednesday before the House Oversight Committee, Mr. Cohen also will make public some of Mr. Trump’s private financial statements and allege that Mr. Trump at times inflated or deflated his net worth for business and personal purposes, including avoiding paying property taxes, the person said. The financial statements were developed by Mr. Trump’s accountant, the person said. The Wall Street Journal hasn’t seen those statements…

Mr. Cohen is expected to recount racist remarks Mr. Trump allegedly made to him, including instances in which Mr. Trump allegedly questioned the intelligence of African-Americans and criticized their lifestyle choices, the person said.