Trump said that African Americans were being hit hard by the coronavirus, representing a "tremendous challenge" for the nation.
Trump's announcement on Twitter came after the deputy director of national intelligence, Sue Gordon, resigned. She said in a note to Trump that stepping down was not her "preference," but added, "You should have your team."
Trump has spent months repeatedly warning that mail-in voting is a "disaster" ripe for "fraud".
Tsien also commended local governments' continued work to simplify procedures, saying the authorities have a service-oriented attitude to facilitate GM's business operation in the country.
Trump said Mexico is doing a "great job" and its actions have had "a very big impact" on migration.
Trump also touted the nation's low unemployment rate and praised what he said was record low unemployment for African Americans, Hispanic Americans and Asian Americans.
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Trump has sought to link an end to the family separations to passage of a wider bill on immigration, prompting Democrats to accuse him of using children as hostages.
Trump said he will sign measures next week for the United States to impose tariffs of 25 percent on steel imports and 10 percent on aluminum imports "for a long period of time".
Trump tweeted on Aug 2, saying that he received a letter from DPRK top leader Kim Jung-un.
Trump's initial comments on the attack were succinct, declaring on social media that "Iran made a very big mistake!"