But the struggle for power with the Kenkyukai gradually began to produce friction, and after the turmoil of the Manko cabinet, the cooperation between the Kenkyukai and the Rikken Seiyukai (the Friends of Constitutional Government Party, or "Seiyukai" for short) and other challenges, the struggle for influence between the Tea Party and the Kenkyukai gradually developed into open hostility, and when some of the members of Hara's Seiyukai cabinet were chosen from the Kenkyukai, not only did the Tea Party abandon the doctrine of transcendence and join forces with the opposition Kenseikai (Constitutional Government Party), they also formed links with the various other factions among non-Kenkyukai House of Peers members in an effort to isolate and surround the Kenkyukai.
だが、次第に研究会との勢力争いによって摩擦が生じるようになり、鰻香内閣騒動や研究会と立憲政友会との連携などを経て茶話会と研究会は次第に対立し、政友会の原内閣に研究会が閣僚を送ると、茶話会も超然主義を放棄して反対党である憲政会と連携する一方、研究会以外の他の貴族院の各会派と連携して研究会を包囲する動きを見せた（幸四派）。