Politicians have hit pay dirt in the National Football League, with some teams providing far more fertile turf than others.

The San Diego Chargers haven’t been much of a powerhouse on the field during the past 20 years.

But in the game of national politics, the Chargers have been a high-stakes participant, leading the league in campaign contributions during that time frame.

NFL/San Diego team owners, officials and players combined to contribute $2.4 million to U.S. congressional and presidential candidates since 1989, according to the Center for Responsive Politics, which tracks campaign contributions.

According to the center, that’s four times more than the next team, the Houston Texans, $623,456, followed by the Arizona Cardinals, $337,096, and Washington Redskins, $323,000.