You are doing well talking of "Tshisekedi", and not of DRC/Zaïre/Congo has been US strategic partners during the COLD war period.
USA, who switch to Uganda/Rwanda (when Rwanda was NOTHING, thus used Tutsi rebels from Uganda) know by experience that a strategic alliance with DRC is POSSIBLE and delivers (successfull end to COLD war, Successfull end of WW2 with atomic bombs with Uranium mined in Congo).
Note: USA v. Russia (Yalta): US has Congo as strategic partner.
Now USA v China: same dynamics of US interest to partner CONGO/DRC once again.
Between both periods (Berlin Wall fall until present Trump admin new "world order"): Rwanda was USA strategic partners in the region.
What Rwanda has delivered to USA?
1) Messy critical strategic minerals supply chain (an environment US investors CAN'T compete, but China's).
2) Messy region with a genocide (Rwanda, 1994) then a GENOCOST (Congo since 1996: What Trump administration want to stop as death tolls is over Germany Shoah, 6 millions.
3) Rwanda's leadership, still mono-ethnic, un-democratic. Thus fueling endless war abroad in the pretext of searching for FDLR HUTU as a survival method, while looting mineral using killers groups and a stealth cross border supply chain to Rwanda.
4) Post Kagame Rwanda path might be a post Mobutu Zaïre path. Thus US preparing the switch back to Congo.
5) Zaïre/DRC has resisted "balkanisation" because the exercise for all Congolese (over 240 tribes) to leave TOGETHER as ONE has proven a success story in Africa. And RDC has been experiencing DEMOCRACY, peacefull power transition even during GENOCOST.
This potential, above natural resources potentials, USA can rely on. This cannot be predicted of post Kagame Rwanda.
USA have smart people and long memory.
They are able to see
-beyond Tshisekedi,
- beyond present mess and failure and know how Rwanda Kagame leadership of the last 30 years haa contributed to that.
History did not start in October 1990. US history in the region started long ahead, with Stanley, Livingstone, before Berlin Conference. Who partner with CONGO become strong. Ask Chinese!