The President made this known in a special interview session with Voice of America, Hausa service, in Washington, United States on Tuesday morning.
But Mohammed, in return, faulted Obasanjo's letter, listing the things he considered as the achievements of Buhari.
But we didn't discuss it because the president knows me, and he knows where I'm coming from.
Trump also noted that Nigerian President Muhammadu Buhari (moo-HAH'-mah-doo boo-HAH'-ree) has taken steps to fight government corruption and improve the trade climate.
"I'm not sure about, you know, the validity of whether that allegation against the president is true or not", he said.
Although Nigeria has been a major partner in the US fight against Islamist extremists in Africa, relations have faced challenges over the past year.
In a meeting with a group of senators on January 11, Trump questioned why the USA would accept more immigrants from Haiti and "shithole countries" in Africa as he rejected a bipartisan immigration deal, according to one participant and people briefed on the remarkable Oval Office conversation.
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"We have received information that the CSO to the President has been parading one of our co-contestants as President Buhari's candidate to emerge as the next President of NANS while making moves for the candidate to be announced as the President of NANS by all means. May be sometime next year we could envisage something like that", he said.
"We will wait and see", the Nigeria's foreign minister said.
Buhari said the US and Nigerian delegations discussed security, trade, government and human rights, among other topics. "But now they are not holding any local governments, according to what the military told me, and I believe them", he said Monday. Bright Sunday Okoro and Mr. Chidinma Godwin Nwafor are today still languishing in prison for no other reason than the fact they were celebrating Trump victory.
The comment had generated backlash from many Nigerians who berated the president for "de-marketing the country". He also mentioned anti-Christian sentiment in Nigeria. "We didn't discuss it because the president knows me and knows where I'm coming from", Trump said". Thousands of people have been killed.
"Areas covered were Security, trade, governance issues". Trump called Boko Haram a "terrible problem" and said the Islamic State group has been "very much decimated".
"On security, the USA has been helping Nigeria, supplying military equipment in the fight against terrorism and there is agreement to continue the cooperation between the two countries in this context".
"The two presidents agreed that concerted efforts will be made".