Democratic Masschusetts Rep. Bill Keating had a meltdown on Tuesday, during a House Foreign Affairs subcommittee hearing, after the subcommittee's chairman called transgender Delaware Rep. Sarah McBride "mister."

The exchange occurred during a hearing on arms control and U.S. assistance to Europe. The committee's chairman Keith Self cited a Trump administration order that only recognizes and identifies two genders, which is the person's biological gender.

Self, a Texas Republican, introduced McBride, who was the first transgender lawmaker elected to Congress, as "the representative from Delaware, Mister McBride."

"Thank you madam chair," McBride swiftly responded. 

McBride was then interrupted by Keating, who asked Self to repeat the introduction, who again referred to McBride as "mister."

"Mister chairman, you are out of order," Keating exploded. "Mister chairman, have you no decency? I mean, I've come to know you a little bit, but this is not decent!"

Self attempted to continue the hearing, but Keating added that the hearing would not continue with his presence "unless you introduce a duly elected representative the right way." The hearing was then concluded, The Hill reported.

McBride has not commented on the exchange, but previously referred to snipes at the lawmaker's gender as an attempt to distract from real issues. 

Misty Severi is a news reporter for Just The News. You can follow her on X for more coverage.