Washington: US President Joe Biden has clinched the presidential nomination for this year’s presidential elections in November after crossing the required number of delegates and setting up an all-but-certain rematch with the predecessor Donald Trump, whom he has blamed for destabilising the country.  Biden became his party’s presumptive nominee when he won enough delegates in Georgia, pushing his count past the required 1,968 to get the nomination.Washington: US President Joe Biden has clinched the presidential nomination for this year’s presidential elections in November after crossing the required number of delegates and setting up an all-but-certain rematch with the predecessor Donald Trump, whom he has blamed for destabilising the country.  Biden became his party’s presumptive nominee when he won enough delegates in Georgia, pushing his count past the required 1,968 to get the nomination.