President Joe Biden has won enough delegates to clinch the 2024 Democratic nomination

President Joe Biden, who took office aiming to steady a nation convulsed by the coronavirus pandemic and the Jan. 6 insurrection, clinched a second straight Democratic nomination Tuesday and set up an all-but-certain rematch with the predecessor he blames for destabilizing the country.

Biden became his party’s presumptive nominee when he won enough delegates in Georgia. That pushed Biden’s count past 1,968 for a majority of delegates to the Democratic National Convention in Chicago this August, where his nomination will be made official. Former President Donald Trump is expected to...