Jill Colvin, White House reporter, used dogged source work to report on COVID infections among guests at President Donald Trump’s election night party.

Election night eventually stretched into five long days in AP’s Washington bureau, leaving political journalists exhausted, but Colvin wasn’t done. She circled back on the East Room party meant to celebrate a Trump victory that never came. Colvin described the event as a classic case of the White House flouting coronavirus guidelines that were drawing new scrutiny after chief of staff Mark Meadows turned out to be among the guests who had tested positive for COVID-19.

The story required determined reporting because, as Colvin wrote in the story, “the White House has been increasingly secretive about outbreaks. Many White House and campaign officials, as well as those who attended the election watch party, were kept in the dark” about who had contracted the virus. But within hours, the story proved prophetic as word surfaced that two more prominent attendees, Housing Secretary Ben Carson and campaign adviser David Bossie had also tested positive. In coming days, even more guests at the event tested positive.