Washington, Oct 4 (TIWN) A new poll has revealed that Democratic presidential nominee Joe Biden was leading US President Donald Trump by sizable margins in the two key swing states of Florida and Pennsylvania, following the first fiery debate between the two rivals on September 29.

The New York Times-Siena College poll published on Saturday found that Biden was Trump in Pennsylvania by 7 percentage points, garnering 49 per cent support, compared to the President’s 42 per cent, reports The Hill news website.