WASHINGTON (AP) — Joe Biden and Donald Trump are two presidents with unfinished business and an itch to get it done.

Their track records and plans on abortion, immigration, taxes, wars abroad — you name it — leave no doubt that the man voters choose in November will seek to shape the landscape of American life in ways wholly distinct from the other.

The choices, if the winner gets his way, are sharply defined. The onward march of regulation and incentives to restrain climate change, or a slow walk if not an about-face. Higher taxes on the super rich, or not. Abortion rights reaffirmed, or left to states to restrict or allow as each decides. Another attempt to legislate border security and orderly entry into the country, or massive deportations. A commitment to stand with Ukraine or let go.

At no time in living memory have two presidents, current and former, competed for the office. Not since Presidents Teddy Roosevelt and William Howard Taft, both Republicans, in 1912, and that didn’t work out for either of them — Democrat Woodrow Wilson won that three-way race.