Advisers said the president was frustrated not so much by his son as by the headlines. But three people close to the legal team said he had also trained his ire on Marc E. Kasowitz, his longtime lawyer, who is leading the team of private lawyers representing him. Mr. Trump, who often vents about advisers in times of trouble, has grown disillusioned by Mr. Kasowitz's strategy, the people said.
The strain, though, exists on both sides. Mr. Kasowitz and his colleagues have complained that Mr. Kushner has been whispering in the president's ear about the Russia investigations and stories while keeping the lawyers out of the loop, according to another person familiar with the legal team. The president's lawyers view Mr. Kushner as an obstacle and freelancer more concerned about protecting himself than his father-in-law, the person said. While no ultimatum has been delivered, the lawyers have told colleagues that they cannot keep operating that way, raising the prospect that Mr. Kasowitz may resign.
