As the Senate convened to hear about woes in the livestock sector, tweeters clamored to make cattle pricing great again, and bring back country of origin labeling.

The campaign, which kicked off on Monday, was started by Joe Goggins, a cattle auctioneer, and is being pushed by Western Ag Reporter , a Billings, Montana-based trade publication. (It’s published by Goggins’ brother, according to The Progressive Farmer .) It coincided with a hearing in the Senate Agriculture Committee on Wednesday, focused on economic troubles in the livestock industry.

Using the hashtag #FairCattleMarkets , they’re calling on the administration to restore some balance between cattle producers, who raise cows, and meatpackers, who turn them into meat. Specifically, the ranchers and feeders are asking the government to set transparent pricing mechanisms for the packers, to ensure they’re paying fairly for cattle. They also want the restoration of a rule, known as country of origin labeling, or COOL, that distinguishes genuine American beef from imports.

For the last week, cattle ranchers and feedlot operators have been tweeting at President Donald Trump and Department of Agriculture Secretary Sonny Perdue, with a fairly consistent, direct message: Rural America helped you get elected. And now we need your help.

from a Montana rancher. “We do whatever it takes to stay afloat. We’re not asking to help us get filthy rich. We just want to ensure that we can stay on our feet for our families and the nation.”

“Producers are the ones with all of the risk involved in this industry,” reads one tweet

“Don’t forget who takes care of the cattle for months on end,” a Kansas rancher named Kerry Crampton tweeted. “We carry all the risk, we take on all liability and loss. The packers have cattle for less than a week.”

The packers she’s referring to are a powerful group of meat processors known collectively as The Big Four. In the past three decades, driven by mergers and acquisitions, Tyson, JBS, Cargill and Marfrig have expanded their share of the cattle market to 85 percent. As that’s happened, farmers have earned less on every dollar of meat that’s sold to consumers. Off-farm income—that is, money earned from doing anything but farming—now comprises 90 percent of earnings for farm households.

That’s part of a rising tide of anger and resentment. In April, a group of feedlot operators filed a class-action lawsuit against The Big Four, alleging that the meatpackers had been colluding to artificially depress the prices they pay for cattle, since they reached a record high in 2015. Because those four companies essentially control the market, the plaintiffs say, they’re able to collectively agree to do things that will trap the sellers of fed cattle in bad contracts, thus padding their own margins, and reaping higher profits.