A White House statement describes Kenya as a "vital partner":

The meeting between the two leaders will reaffirm the longstanding relationship between the United States and Kenya as a cornerstone of peace and stability in Africa and the broader Indo-Pacific region."

Indo-Pacific? Apparently it's a term that's being increasingly used in diplomatic circles and the Trump administration has embraced it, according to this Quartz article from 2017.

It mainly includes Asia, but the East African coast is on the region's far western edge according to this map from the Australian Lowy Institute:

Lowy Institute

Mr Kenyatta will become the third African leader to meet President Trump at the White House, after the presidents of Egypt and Nigeria.