Tune into television coverage of the presidential campaign and undoubtedly you will hear from various pundits described as “former campaign strategists” and “political contributors” explaining the latest developments of the race. But in many cases, these pundits — though introduced as neutral experts on campaigns or party politics — in fact have financial ties to the candidates they praise on the air.

Several consultants who work at firms retained by Hillary Clinton’s campaign and her affiliated Super PACs appear regularly on the major television networks, frequently touting Clinton.

A review of pundits on the major networks and cable news also found one prominent pundit who often praised Jeb Bush without the network revealing her relationship with his campaign.

“Journalism 101 teaches that reporters and TV news hosts must properly identify their sources and analysts,” says Jeff Cohen, an associate professor of journalism at Ithaca College. We reached out to NBC, CBS, CNN, and ABC News, but did not hear back.