Tuesday’s primaries include presidential races and the prosecutor in Trump’s Georgia election case

The presidential primaries that Joe Biden and Donald Trump have already clinched will move closer to their end Tuesday.

Voters in two states, Kentucky and Oregon, will get their chance to weigh in, symbolic decisions that provide a few more delegates to the national conventions and a gut check on where the Democratic and Republican bases stand toward their standard-bearers.

Even after they secured the nominations and their rivals dropped out, Biden and Trump have continued facing dissent from within their own parties. Biden has faced protest votes over his handling of the Israel-Hamas war while...