The political action committee of Virginia’s governor, Terry McAuliffe, has decided to give back a $25,000 donation from a Houston company with ties to Angola’s state-owned oil company, Sonogol. The PAC’s director, Brian Zuzenak, said the contribution was being returned because Glinn USA Investments, which is based in Houston, would not sign a letter stating that the contribution was legal. Federal law prohibits federal, state and local political campaigns from accepting money from outside the United States. A lawyer for Glinn USA said the company asked the PAC to return the contribution because the company’s owners did not want to be involved in a political controversy.