Kiunjuri is known as an ally of deputy president William Ruto and the TSP is part of Ruto's Kenya Kwanza political alliance.
The Azimio coalition is headed by former prime minister and Orange Democratic Movement (ODM) leader Raila Odinga. Karua, who is the party leader of Narc Kenya, is Odinga's running mate. Kabando is also a member of Narc Kenya.
Odinga will face Ruto in Kenya's 9 August 2022 presidential election.
But is the photo recent? We checked.
'Ignore the rumours going around,' says Service Party
At the time, the Azimio la Umoja and Kenya Kwanza political formations had not come into existence.
She captioned the photo: "Having tea with friends."
On 15 June 2022 the TSP asked its supporters to ignore reports that the party was joining the Azimio la Umoja coalition.
It posted on Facebook: "Ignore the rumours going around about TSP joining Azimio. TSP has a National Governing Council (NGC) that would make such a decision were it to come to that. I urge our candidates not to be distracted from their campaigns by such rumours."
The photo from 2021 has been shared out of context in 2022.