President Joe Biden has warned that the threat of Russian President Vladimir Putin using tactical nuclear weapons is “real,” as Ukraine's counteroffensive rolls on.

President Joe Biden intends to appoint Dr. Mandy Cohen to lead the US Centers for Disease Control and Prevention, the White House confirmed exclusively to CNN, succeeding Dr. Rochelle Walensky in the critical public health role as the agency grapples with challenges in the aftermath of the pandemic.

President Biden participates in a gun policy summit and gives remarks touching on the bipartisan gun control law he signed after the Uvalde school shooting.