"This isn't just a wink to white supremacists-he's throwing them a welcome home party," Senator Kamala Harris tweeted after Trump first announced the rally.
After COVID-19 was first detected in central China last year, the vast Asian country largely eliminated transmission within its borders through hyper-strict lockdowns that were emulated across the globe.
South Korea has been the target of a wave of angry statements recently from the North, which has accused Seoul of allowing defectors to launch leaflets critical of leader Kim Jong Un into its territory.
“Many of my African American friends and supporters have reached out to suggest that we consider changing the date out of respect for this Holiday,” Trump tweeted.