US President Joe Biden will on Wednesday address the nation for the first time in public since dropping his re-election bid and backing Vice President Kamala Harris to replace him as the Democratic presidential candidate. Biden wrote Tuesday on X that his Oval Office speech will be about “what lies ahead, and how I will finish the job for the American people.” It is scheduled for 8 pm on Wednesday (0000 GMT Thursday). Biden, 81, has been out of the public view since late last week as he recovers from a Covid-19 infection at his residence in Delaware. He has not spoken in front of cameras since…