A federal judge in New York ruled Tuesday that the government must fully restart the Obama-era DACA deportation amnesty and accept brand new applicants as well as renewals, throwing a potential wrench in the ongoing debate over the fate of “Dreamers” on Capitol Hill. Judge Nicholas G. Garaufis said the administration does have the power to revoke DACA, but it must give a sound reason for doing so — and the Homeland Security Department’s September 2017 rationale fell far short of what is required in that regard. He becomes the second judge to rule President Trump’s aides bungled the phaseout...