"I just want to remind you that it took just over three weeks," she says in the video. "Trump now orders … Federal employees to work without work again, that's serious, our country is in a hellhole right now, all for a … wall."
Cardi B says she feels worried and helpless while the closure continues.
"I feel like we have to do something," she says. "I do not know what kind of action it is … because that's not what I do, but … I'm scared."
A few hours after she posted the video on Instagram, she had more than 8 million views, and some of her nearly 40 million followers applauded her for using her platform for political issues. Others left comments on the impact of the deadlock on their households.
While the video was being shot on social media, some Democratic lawmakers wondered if they should share it.
"Trying to decide whether or not to tweet Cardi B's video again," tweeted Senator Brian Schatz of Hawaii.
"Omg, I had the same argument with me 30 minutes ago!" Sen. Chris Murphy of Connecticut agreed.
He eagerly waited to see if they would, and Senate Minority Leader Chuck Schumer announced his feelings.
"People, I'm still holding my breath, are you going to do RT Cardi B or not?" he tweeted Sweetheart told him that they had decided not to share it because "it would not be senatorial."