Former vice president Joe Biden and his newly selected running mate, Sen. Kamala D. Harris (D-Calif.), are appearing Wednesday in Wilmington, Del. They will also attend a “virtual grass-roots” fundraiser in the evening, the campaign said.

This will be the second time Biden has run on a history-making ticket. He ran with the first African American candidate for president, Barack Obama, and now with the first Black woman and first Asian American to run on a major-party ticket.

President Trump, meanwhile, spoke Wednesday afternoon at an event on safely reopening schools amid the coronavirus pandemic.

Here are some significant developments:

  • Biden’s selection of Harris was both historic and conventional.
  • Interviews with people briefed on the Biden vice-presidential selection effort described a process that was extensive and laborious, with no certainty of outcome.
  • Rep. Ilhan Omar (D-Minn.) soundly defeated a well-funded primary challenger, the latest in a series of victories for liberals.