$7.4 trillion investment giant BlackRock's top strategist says US stocks face a reckoning ahead of a 'tumultuous' presidential election

· BlackRock said US stocks will be sensitive to the upcoming presidential election in November and as the impact of fiscal and monetary policy stimulus measures disappear. 
· In a 2020 mid-year outlook, BlackRock said the US election will take place against the most "tumultuous domestic backdrop since 1968," and the result...