On the same day that Trump signed an executive order to to expedite the stalled construction of the Dakota Access Pipeline, a picture of Ronda Rousey at Standing Rock made rounds on social media.
TMZ reports that Rousey's group brought supplies to the protesters. They delivered everything from fresh fruit and vegetables to tents and wood-burning stoves.
A source says that Rousey tried to stay under the radar. The UFC fighter has largely stayed out of public eye since her loss to Amanda Nunes in December.
Pauline Macias, a fellow Olympic judo athlete, posted a photo of Rousey at Standing Rock.
The Dakota Access Pipeline
Standing Rock Indian Reservation has been the site of intense protests in recent months, due to the fact that the proposed route of the Dakota Access Pipeline would contaminate the water supply of the Standing Rock Sioux.
In December, the U.S. Army Corps of Engineers denied the easement to cross Lake Oahe for the proposed Dakota Access Pipeline, saying it would look at alternate routes. But Trump's support for the pipeline has caused protests to heat up again in recent weeks.
Ronda Rousey and Donald Trump
In 2015, Trump incorrectly claimed that Rousey supported him as a candidate. But Rousey had previously spoken out against the idea of a Trump presidency in an interview with CNN. She told CNN that she would not vote for Trump.
"I mean, I don't want a reality TV star to be running my country," she said.
When Rousey lost to Holly Holm in November of the same year, Trump tweeted that he was "glad" to see her lose because she is "not a nice person."
Many people on Twitter are showing their support for Rousey.
"I want to thank you for showing your support and being a badass," wrote one fan.