Donald J. Trump today heeded the din of dissent across the nation over a policy that separated young children from their parents at the nation’s southern border.

The president’s executive order ends the policy in a 180-degree reversal. Families won’t be separated. Children won’t be delivered to camps to await some disposition of their fate while the government decides what to do about their parents’ illegal entry into the United States.

I am glad to see the president react in this manner. His rhetoric today, though, continues to sound defiant. He lays blame for this situation on his predecessors in the Oval Office.

So, the question remains: What happens now?

Republicans in Congress joined their Democratic colleagues in calling for an end to this inhumane policy. I am heartened to hear the bipartisan outrage, just as I am heartened to witness Trump backing down from his previous statements.

I am left to wonder, too, why he would say today that he “didn’t like the sight” of families being separated. When did that “sight” upset him? Did it just happen? Or was he upset all along? If it’s the latter, then why continue to implement such a policy?

Well, he acted today as he should have done before this crisis erupted. Now it’s time to find a comprehensive solution to the nation’s immigration policy.

Get busy, Mr. President and members of Congress.