Yes / no, is the following a verifiable fact?
"Sonia Sotomayor has been acting as the first female Chief Justice on the Supreme Court of the United States since her confirmation by the House of Representatives." Step-by-step reasoning process:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
John Roberts is the Chief Justice and it is the Senate which does the confirmation. Therefore, the final answer is no.