If you didn't know any better, you might think ABC correspondent Lisa Stark has a personal vendetta against airline mergers.

For the second consecutive night, Stark gave viewers every reason to oppose a merger between Delta Air Lines (NYSE:DAL) and Northwest Airlines (NYSE:NWA) on the April 15 "World News with Charles Gibson." This time it came in the form of opposition on Capitol Hill.

"But there was swift opposition," ABC correspondent Lisa Stark said. "A powerful lawmaker from Minnesota, where Northwest is based, called it one of the worst developments in aviation history."