Former national security adviser Susan Rice hit back at President Trump after he blamed the Obama administration for Russia's 2014 annexation of Crimea from Ukraine.

In an interview Sunday on CBS, Rice panned Trump's "disgraceful" assertion the previous day, when he said Russia should be allowed back into the G-7 international partnership and blamed his predecessor for allowing Russia to enter and annex Crimea — a move which prompted Russia's suspension from what had been the G-8.

"For the president of the United States to suggest all is forgotten, that that doesn’t matter, that we are fine with one country annexing another country’s sovereign territory and we should just welcome them with open arms into a community of democracies is outrageous," she said.

"You'll have to ask Obama, because he was the one that let Crimea get away," Trump said Saturday in Canada during the G-7 summit. "He allowed Russia to take Crimea. I may have had a much different attitude."