The former president of Afghanistan said he would "welcome an official audit or financial investigation under U.N. auspices."
The Fox News host said the Pentagon and State Department "hate" Biden for ending the long conflict.
"President Ghani's reckless and cowardly actions likely contributed to the speed with which the Taliban took over the country and toppled the Afghan government," Republican members of the House Oversight Committee wrote on Tuesday.
Karzai served as Afghanistan's president from 2001 to 2014 and has expressed his goal to negotiate with the Taliban for the good of the country.
A collection of photos documenting the ongoing crisis in Afghanistan since the Taliban took over last Sunday.
When the Taliban ruled the country in the late nineties, public executions and violence against women were frequently reported
"He spent all his time wining and dining our senators," Trump said. "The senators were in his pocket. That was one of the problems that we had."
The deposed vice president said he is "reaching out to all leaders to secure their support and consensus."
A female television anchor even interviewed a Taliban official on camera Tuesday in the channel's studio.
"We don't have a president," the reporter said. "We don't have anything...people they don't know what to do."
Russian ambassador to Afghanistan Dmitry Zhirnov told the Ekho Moskvy radio station that "under the terrorist Taliban it's better than under Ghani."
The publisher of The Washington Post, Fred Ryan, is asking for the administration's help in getting "204 journalists, support staff and families" in Kabul to safety.
Abdulhaq Azad, the press secretary of the Afghan embassy in India, later said the account had been hacked
The move comes just hours after Taliban militants entered the outskirts of Kabul and sought the unconditional surrender of the nation's central government.
Although the Taliban said they would not monopolize power in the region, they insist that a peace deal will not be reached until a new government is negotiated.
Three rockets were fired at the presidential palace in a suspected Taliban attack, though no injuries were reported.
A Pentagon official said on Friday that American and NATO troops had departed the key military stronghold, 30 miles from Kabul.
At least 2,500 U.S. troops are deployed as part of the 9,600-strong NATO Afghan mission. President Joe Biden wants to withdraw them all by September 11.
The Afghan president expressed his reservations about the U.S. troop withdrawal
"It reveals that there is no process in this administration, there is no serious policymaking process," former CIA Director John Brennan said.
"Afghanistan would be wiped off the face of the earth, it would be gone," Trump said on Monday.
The Pentagon chief defined the final goal of the conflict as political reconciliation between the warring parties rather than a military victory.
The U.S. has said it will not attend Moscow-led peace talks scheduled for Friday.
More than 80 were killed in the Islamic State attack on protesters from the mainly Shi'ite Hazara minority group.
The decision comes amid escalating Taliban-led violence in Afghanistan.
David Cameron described Afghanistan as "fantastically corrupt."