Biden administration official Samantha Power called on Congress to approve President Joe Biden's request for $33 billion in additional aid for Ukraine.

During an interview with CBS's Face the Nation on Sunday, Power highlighted the benefits of previous aid packages that have been sent to Ukraine.

"There are vast swaths of Ukraine that have been newly liberated by Ukrainian forces where there is desperate need," Power told host Margaret Brennan. "Everything from demining to trauma kits to food assistance, since markets are not back up and running."

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Previous humanitarian aid has helped Ukrainians, as well as "third countries that are feeling these huge cascading effects of Putin's war," Power said, noting problems such as rising food prices.

"You know, you have as many as 40 million people that could be pushed into poverty now just because of Russia's war," Power said. "So we're already spending some of that money, but the burn rate is very, very high as prices spiral inside Ukraine and outside Ukraine."

Biden requested the massive spending bill from lawmakers on Thursday, calling for $33 billion to be spent on additional military and economic relief as Ukraine seeks to rebuild itself and resist Russia's invasion.

The bill includes $20 billion for military and weapons assistance, $8.5 billion for economic assistance, and $3 billion for humanitarian and food aid, replenishing U.S. stockpiles of important systems, and helping other countries move away from dependency on Russian weapons, according to an official.

Power highlighted the importance of the additional humanitarian aid, explaining that the $3 billion in humanitarian assistance would go to meet "famine-level" and "acute malnutrition needs." The bill would also offer "very significant direct budget support for the government of Ukraine, because what we want to ensure is that that government can continue providing services for its people," Power said.

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The new request dwarfs previous aid bills and shows Russian President Vladimir Putin that the United States is determined to help Ukrainian military forces fend of Russian forces, Power said.

"Putin would like nothing more than the government of Ukraine to go bankrupt and not be able to actually to — to cater to the needs of the people," Power said. "That would weaken Ukrainian solidarity, and Putin wants nothing more, of course, than to strengthen his bargaining hand here as he exerts military pressure and financial pressure at once. We can't let that happen."