周四（6月4日）就是六四事件31周年，警方以疫情及限聚令為由，禁止支聯會的維園六四晚會，是歷來首次。
美國國務卿蓬佩奧於社交網站貼文，提及六四晚會被禁，指如果對北京有任何質疑，結果就打壓港人的聲音及選擇。
蓬佩奧形容有關做法，是要令到港人與大陸人一樣，與兩制不符。
It starts; so soon. For the first time in 30 years, Hong Kong authorities denied permission to hold the #TiananmenVigil. If there is any doubt about Beijing’s intent, it is to deny Hong Kongers a voice and a choice, making them the same as mainlanders. So much for two systems.
— Secretary Pompeo (@SecPompeo) June 2, 2020