President Joe Biden promised on Friday to do everything we can to evacuate Americans and Afghans seeking to leave Afghanistan now that Taliban militants have taken over the country suggesting he might extend the U.S. mission there.

Any American who wants to come home we will get home, the president said. He added that that commitment also applies to the tens of thousands of Afghans who worked with U.S. forces during the 20-year American mission in Afghanistan and who the Taliban are already targeting in revenge.

American forces are currently scheduled to leave Afghanistan by Aug. 31. Asked about a possible extension of the deployment, Biden said he believes evacuations can be completed by then but were going to make that judgment as we go.

Biden has been under intense scrutiny for the evacuation effort in Afghanistan.

The president has deployed more than 5,000 U.S. troops to Afghanistan to control the airport at Kabul, where American officials are organizing evacuation flights for Americans, other foreign nationals and some Afghans to other countries, from neighboring Bahrain to the U.S. On Thursday, State Department spokesman Ned Price said the administration is also doubling the number of consular staff working on processing visa and refugee applications in Kabul and other locations.

But Washingtons approach has clear flaws. Officials say they remain unable to ensure safe passage to the airport and snafus have slowed down the evacuations: Earlier on Friday, flights paused for hours because Qatar was unable to accept more passengers and the U.S. scrambled to find another destination.