WASHINGTON DC: Millions of Americans in 15 states and American Samoa voted Tuesday, the biggest day of balloting in Democratic and Republican presidential nominating elections.

President Joe Biden and former President Donald Trump are expected to win wide approval from their party faithful en route to a November election against each other.

Neither Biden nor Trump can clinch their respective presidential nominations in the Tuesday voting.

But with more than a third of the delegates to this summer’s national party conventions at stake, Biden and Trump can take a huge step toward winning a majority of convention delegates and could soon clinch their party nominations in primaries in the next few weeks.

Biden has only token opposition in the Democratic contests, while Trump has one remaining challenger — former United Nations Ambassador Nikki Haley.

Trump has defeated her in every state primary or caucus contest so far, although Haley won Sunday in Washington, D.C., where a tiny contingent of 2,000 Republicans turned out to vote in the overwhelmingly Democratic national capital and made her the first woman to ever win a Republican presidential nominating contest.

But Haley faces a daunting reality on Tuesday, and her campaign is not predicting she will win any of the 16 contests.

But state-by-state polling shows she could pull off an upset or two against Trump, even as he faces an unprecedented four criminal indictments encompassing 91 charges and one trial starting in three weeks.

Several of the states voting are awarding all their party convention delegates to the winner of individual primaries, rather than a proportionate share based on the vote count, which is likely to greatly benefit Trump.

(VOA)