Of course, no red line because it made no difference when Obie set one in Syria.

"The White House has denounced "Russia's false claims" the U.S. is producing bioweapons in Ukraine, but press secretary Jen Psaki stopped short of revealing how the Biden administration might respond if Russia uses bioweapons in its invasion of Ukraine.
"I'm not going to get into red lines from here," Psaki told reporters at Thursday's press briefing. "What we're saying right now is they have the capacity and the capabilities.
"I'm also not going to get into intelligence, but the president's intention of sending U.S. military to fight in Ukraine against Russia has not changed."

https://www.newsmax.com/politi....cs/white-house-biowe