Trump's campaign has so far declined to announce the president's defeat to his rival, former vice President Democrat Joe Biden, saying a large number of mail-in ballots were cast illegally.
Trump has denied any wrongdoing and has urged more efforts from Republicans to defend him and challenge the impeachment inquiry.
Tsang was granted bail pending an appeal against his conviction and was released on a cash bail of 100,000 HK dollars (about ,870).
Trump didn't take any questions but said the worst of the virus was in the rearview mirror and that "we are putting out the fires" where there are flare-ups.
Trump said that he would delete his Twitter account "in a heartbeat if we had a fair press in the US".
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Trump also asked Congress to pass legislation to "help ensure American foreign-assistance dollars always serve American interests, and only go to friends of America".
Trump proclaimed a temporary exemption from the tariffs for Canada on March 8, which made Canadians breathe more easily.
Trump dug in on his proposal again Saturday, tweeting in the morning that "we are working hard at the Border, but we need a WALL!"
Trump is the fourth US president in American history to face impeachment. If impeached, he will be the third US president to face a trial in the Senate.