1. “He is a racist. He is a con man. And he is a cheat.”

That was Michael Cohen, President Trump’s former personal lawyer and fixer, painting a scathing picture of the president’s motivations and inner circle in testimony before the House Oversight Committee.

Mr. Cohen said that Mr. Trump directed him to lie about hush payments to a pornographic film star and that Mr. Trump knew well in advance about a WikiLeaks email release damaging Hillary Clinton’s campaign. Those and other elements of his testimony could create new legal issues for Mr. Trump.

The hearing had moments of revelation and substance, but it was also marked by fiery exchanges. Here are a few of them.