Want fewer abortions? Vote for Harris.

One consequence of Kamala Harris’s newborn presidential candidacy is that abortion has become an even bigger campaign issue. Harris has been talking about it for months, far more than Biden did. She aims to mobilize pro-choice voters on her side.

But pro-life voters, who want more than anything else to minimize the number of abortions, also ought to vote for her. They should try to elect Democratic congressional candidates, as well. A Trump presidency, particularly if he gets ...