Before President-elect Donald Trump has fully fleshed out his policy agenda, House Republicans are already planning to slam through Congress their own program of repealing Obamacare, repealing regulations Barack Obama issued in the last 60 legislative days of his administration, and enacting substantial tax cuts.

This agenda has some parallel with the president-elect's stated agenda during his campaign. But Mr. Trump spent more time on the trail to the White House advocating the trashing of what he called bad trade deals, building a border wall and deporting illegal immigrants, and questioning excessive U.S. military interventionism overseas and outdated alliances in which the United States protects wealthy allies. Mr. Trump has already qualified his repeal of Obamacare, saying he will require insurance for people with pre-existing medical conditions and allow parents to keep their children on their insurance policies up to the age of 26. Also, he has softened his stance on withdrawing from U.S. alliances.