Hello
A majority vote in the House to impeach would trigger a trial in the Republican-controlled Senate, although it was unclear whether such a trial would take place in time to expel Trump from office.
Kamala Harris is symbolic of the typical industrious mixed race families and connects with voters across races and religions.
Harris, whose mother and father emigrated from India and Jamaica, respectively, was the first woman to serve as San Francisco's district attorney and the first woman to serve as California's attorney general.
Seema Nanda would be replaced by Mary Beth Cahill, who had previously managed John Kerry's 2004 presidential campaign.
The move, which the Republican president announced on Twitter, effectively achieves one of Trump's long-term policy goals of curbing immigration, making use of the health and economic crisis that has swept the country as a result of the pandemic to do so.
The US House of Representatives began debate on Wednesday ahead of a historic vote on two articles of impeachment against President Donald Trump, who is poised to become the nation's third president to be impeached.
The full House of Representatives is expected to vote on the charges, or articles of impeachment, next week.
Obama, who had frustrated some Democrats by keeping a relatively low profile since leaving office in January 2017, accused Republicans of being unwilling to safeguard democracy.