"Iraqi security is being provided by the Iraqis, with our assistance. We're going to have -- still have 50,000 troops there. We will have brought home 95,000. There is no one in the military who thinks there's any reason we can't do that."
Biden acknowledged the difficulties among Iraqi parties in reaching a power-sharing agreement but said this would not affect the US drawdown.
"I don't have a doubt in my mind that we'll be able to meet the commitment of having only 50,000 troops there and it will not in any way affect the physical stability of Iraq," he said.
Iraqi political parties "are in negotiations right now to figure out how to allocate the power within that government," he said.
"In other words, share power. And it is about just that. And it's underway. And it's going to happen. There will be a central government with control of its foreign policy, with control of the military."
Biden's comments came days after Washington urged Iraqis on all sides to make greater efforts to overcome differences and end a four-month stalemate in forming a government.
Iraqi politicians last Monday extended an inaugural parliamentary session by two weeks to give rival blocs more time to form a government, more than four months after the elections.
The parliament, the second democratically elected chamber since the 2003 fall of dictator Saddam Hussein, met briefly for the first time on June 14 after the March 7 general election.
In early July, Biden traveled to Iraq to urge politicians to put aside personal ambitions and form a government representative of all Iraqis.
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