Donald Trump's victory in the US presidential election four years ago brought into question as never before the reliability of opinion polls. Can they be believed this time around? With 16 days to go before the November 3 election, Democrat Joe Biden is ahead of the Republican president by 9.0 percentage points nationally, according to polling averages from the RealClearPolitics website.

from Times of India https://timesofindia.indiatimes.com/world/us/us-presidential-elections/biden-leads-trump-but-can-polls-be-trusted-this-year/articleshow/78727575.cms