Vowing not to be "intimidated" by Donald Trump, the new Democratic chairman of the House Intelligence Committee said the panel will probe whether foreign governments had improper leverage over the president or his business interests.

Rep. Adam Schiff told reporters Wednesday that the panel will focus in part on "making sure that the policy of the United States is being driven by the national interest, and not by any financial entanglement, financial leverage, or other form of compromise" by "the Russians or the Saudis or anyone else."

The move reflects a sea-change from last year, when Republicans controlled the committee and focused mostly on allegations that the Russia inquiry now run by special counsel Robert Mueller was tainted early on by anti-Trump sentiment within the FBI and Justice Department.