WASHINGTON – The White House will block counselor Kellyanne Conway from testifying before a House panel about allegations by a government watchdog that she violated the Hatch Act, increasing the likelihood of another subpoena battle between the two branches of government. White House lawyers on Monday rejected the House Committee on Oversight and Reform’s request for Conway to appear at a hearing Wednesday. In a letter addressed to Chairman Elijah Cummings, D-Maryland, Pat Cipollone, counsel to the president, wrote that “in accordance with long-standing precedent, we respectfully decline the invitation to make Ms.