The blending of the two parties' views on Afghanistan as Biden plans to withdraw U.S. troops - fulfilling a campaign promise that eluded both Presidents Barack Obama and Donald Trump - is a sign of how Afghanistan has moved beyond traditional partisanship as the war has dragged on for almost two decades.
"I find it ironic that, given the sacrifices we've made to move Afghanistan forward, prevent another 9/11, and ensure the enduring defeat of al Qaeda* and ISIS*, that on the 20th anniversary of the attack we're paving the way for another attack", he said.
While al-Qaida is not now believed to pose an external threat to the US, the official said, the country will reposition its counterterrorism assets in the region to monitor and disrupt any potential threats to the homeland.
The Biden administration has said Al Qaeda does not pose a threat to the USA homeland now. "The question is when we leave".
For Afghans the fighting will likely grind on.
The administration will, however, miss President Trump's deadline to withdraw troops by May 1, which is the 10-year anniversary of the death of Osama Bin Laden.
The Trump administration had set the pullout date for May 1.
Asked why the deadline is being moved so far ahead of the previous May timeline when the United States could remove its roughly 2,500 troops before that, the official said the extra time is to allow all North Atlantic Treaty Organisation forces "the time and space they need to conduct a safe and orderly withdrawal". The official spoke shortly after United States intelligence released a threat assessment report warning that the embattled Afghan government "will struggle" to hold off the "confident" Taliban if the US-led coalition withdraws.
The threat assessment report published Tuesday by the director of national intelligence said the Taliban "is confident it can achieve military victory".
"Afghan forces continue to secure major cities and other government strongholds, but they remain tied down in defensive missions and have struggled to hold recaptured territory or reestablish a presence in areas abandoned in 2020", it said.
Mr Biden's decision risks retaliation by the Taliban on U.S. and Afghan forces, possibly escalating the 20-year war.
A rise of the Taliban has also raised fears among many Afghan women.
The Trump administration also tried to pave the way for peace negotiations between the internationally recognized Afghan government and the Taliban - although talks have since faltered.
India has said it would back a negotiated peace settlement via a regional process convened by the UN.
Biden will make an announcement on Wednesday that all USA forces, in coordination with those of Western allies, will leave other than limited personnel to guard USA diplomatic installations, the official said.
A us intelligence report released at the end of March said that should the USA withdraw, it is likely the Taliban could take over Afghanistan within two to three years and potentially bring al Qaeda back to power in the country.
"Precipitously withdrawing USA forces from Afghanistan is a grave mistake", McConnell said, adding that effective counter-terrorism operations require presence and partners on the ground.