I found this:

https://www.theguardian.com/world/2020/oct/31/he-just-says-it-as-it-is-why-many-nigerians-support-donald-trump

“With Obama, he prioritised gay rights, abortion, an Islamising agenda. Such policies were not good for America,” Abiodun says. Trump slogans such as “America first”, and policies that disadvantage Nigerian migrants, simply reflect that leaders should put their own countries first too, he says. “Our own leaders have not done that.”

Some criticism of Buhari, a Muslim from the country’s north where Islam is more dominant, has been spurred by religious concerns. Accusations of an “Islamisation agenda” and filling powerful positions with northern Muslim figures are common in media commentary. As insecurity has spread in Nigeria, some influential groups have depicted complex communal and regional conflicts as religious warfare by Muslims against Christians and accused Buhari’s government of complicity. The growth of militancy among Buhari’s ethnic Fulanis has only fuelled simplistic narratives further.

Meanwhile, Trump’s outspoken criticism of Christian persecution has not gone unnoticed. In 2018 when Buhari visited the White House, Trump said: “We have had very serious problems with Christians who are being murdered in Nigeria. We are going to be working on that problem very, very hard because we cannot allow that to happen.”