The only senators of Asian American heritage, they said they would withhold their support for his nominees until the diversity issue was addressed.
AdDuckworth had said earlier that she raised the issue with top Biden advisers on Tuesday and afterward called the situation “not acceptable."
“I’ve been talking to them for months and they’re still not aggressive, so I’m not going to be voting for any nominee from the White House other than diversity nominees,” Duckworth told reporters.
But Hirono later said in a statement of her own that she too welcomed the appointment of an AAPI White House liaison and was dropping her objections.
Tai, who was confirmed last week, is the first Asian American and first woman of color to serve as U.S. trade representative.