HOUSTON -- A Texas oilman who's accused of defrauding the Nigerian government by illegally pumping and exporting 10 million barrels of oil is a major fundraiser for Hillary Clinton's presidential campaign. Kase Lawal of Houston is at least the fourth person accused or convicted of criminal wrongdoing to help finance Clinton's political ambitions since 2000 and the second in her quest for the White House. The list also includes Chinese and Pakistani fugitives and a former Miami lawyer, Peter Paul, who was convicted of defrauding Cuba. There's no indication that Clinton's campaign was aware of Lawal's legal problems when it...