WASHINGTON ― White House officials are refusing to turn over information to congressional leaders on their handling of domestic abuse allegations against former top aide Rob Porter, further raising questions about the Trump administration’s already muddled explanations. House Oversight Committee chairman Trey Gowdy (R-S.C.) launched an investigation into the White House’s handling of the matter on Feb. 14, giving chief of staff John Kelly a deadline of Feb. 28 to submit information, particularly on why Porter worked under an interim security clearance to handle sensitive information.