During a segment on Jeopardy last Thursday, three contestants were asked about special counsel Robert Mueller’s Russian investigation — but all three were stumped.

“In 2017, this ex-national security adviser pleaded guilty to lying to the FBI?” Jeopardy host Alex Trebek asked.

One of the contestants said it was White House chief of staff John Kelly and another one said that it was former White House adviser Sebastian Gorka.

The correct answer was Michael Flynn, who served as President Donald Trump’s national security adviser before resigning in 2017.