Members were exasperated with what they said was a lack of clarity in the officials’ answers, as lawmakers struggle to understand how the US has been so far outpaced by other countries grappling with the pandemic.

As he left Thursday’s briefing, GOP Rep. Mark Walker of North Carolina said there is “a growing frustration among members as a whole to get more definitive answers” from the administration about testing capabilities.

He said the Centers for Disease Control and Prevention “struggled to give a really strong answer” on why the United States hasn’t been able to duplicate testing that is being used in places such as South Korea.

“I don’t think anyone is going to leave that briefing satisfied with what’s going on with testing right now … bottom line, you leave that briefing and we are not where we need to be and not sure when we are going to get there,” said Democratic Rep. Mike Quigley of Illinois. “We are flying blind.”