US elections: Primaries taking place in some states

Pennsylvania is one of four US states that will vote for their preferred candidate on Tuesday and national polls there show that Joe Biden is more popular than Donald Trump among senior citizens.

The protests and the coronavirus pandemic are both happening during this election year in the United States.

President Donald Trump is all but certain to take on former Vice President Joe Biden, who is almost certain to become the Democratic nominee.

Still, the primary election process continues, and four states will vote for their preferred candidate on Tuesday.

Al Jazeera’s Kristen Saloomey reports from Pennsylvania.