Rep. Cynthia Axne (D., Iowa) expressed her disappointment Sunday with Rep. Rashida Tlaib (D., Mich.) booing twice-failed presidential candidate Hillary Clinton.

"I hate to see something like that that's going on within our own party. I find it to be disrespectful," Axne said about Tlaib's appearance at a rally for Sen. Bernie Sanders (I., Vt.). "Certainly, Hillary Clinton was a pioneer for women running for office and for standing up for our Democratic values that are important for this country."

Axne, who has endorsed former vice president Joe Biden, argued on CNN's State of the Union that Iowans will not be pleased with how Tlaib has sowed division within the party as she has campaigned for Sanders.

"I don't think that kind of behavior is something that Iowans like to see, and I certainly know that Iowans believe in the term ‘Iowa nice,'" Axne said. "We want to support our neighbors … even though we might not agree with them, while we're sitting in the room and it can be very contentious. That type of behavior doesn't go over well in Iowa."

The Sanders rally on Friday featured a question from a campaign aide about an interview Clinton recently gave, in which she said that nobody likes Sanders and other politicians try to avoid working with him. A chorus of boos from the crowd interrupted the aide before she could finish.

"We're not gonna boo, we're not gonna boo, we're classy here," the aide said.

"No, no I'll boo. Boo!" Tlaib said. "You all know I can't be quiet. No, we're gonna boo. The haters will shut up on Monday when we win."

BREAKING: At a @BernieSanders rally in Iowa tonight, a leading Sanders’ surrogate @RashidaTlaib led the crowd in booing @HillaryClinton. pic.twitter.com/AKdi2psI2h — Christopher J. Hale (@chrisjollyhale) February 1, 2020

Tlaib's colleagues and fellow progressives Reps. Ilhan Omar (D., Minn.) and Pramila Jayapal (D., Wash.) laughed, and the crowd cheered in response.