MONTCLAIR, N.J. – Joe Biden could seize the number of delegates needed to formally clinch the Democrats' presidential nomination on Tuesday as seven states and the District of Columbia push through a pandemic and exploding racial tensions to host the largest slate of primary elections in almost three months.
Voters will be asked to navigate curfews, health concerns and a sharp increase in mail balloting as elections take place from Maryland to Montana.
Four states were originally scheduled to vote in April but delayed their contests because of the coronavirus outbreak. Pennsylvania offers the day's biggest trove of delegates and represents a high-profile test case for Republicans and Democrats working to strengthen their operations in one