Biden secures Democratic nomination by reaching delegate mark [Video]

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 clinch the Republican nomination shortly.Biden, who mounted his first bid for president 37 years ago, did not face any serious Democratic challengers to his run for reelection at age 81. That’s despite facing low approval ratings and a lack of voter enthusiasm for his presidency — driven in part by his age.Just 38% of U.S. adults approve of how Biden is …