Joe Biden will meet with a bipartisan group of mayors and governors on Friday as he continues to push for approval of a $1.9 trillion coronavirus relief plan to bolster economic growth and help millions of unemployed workers.Biden and Vice President Kamala Harris will also receive an economic briefing from Treasury Secretary Janet Yellen, shortly after she takes part in the first meeting of the Group of Seven rich economies since the new US administration took office.Biden's proposed spending package, coming on top of $4 trillion enacted by his predecessor Donald Trump, will have important consequences for the global economy which is slowly recovering - but very unevenly - after last year suffering its worst downturn since the Great.