A federal judge on Friday blocked the IRS from giving ICE the home addresses of taxpayers who might be undocumented immigrants — dealing a blow to the Trump administration’s mass deportation efforts. The ruling is a significant victory for immigrant-rights group and liberal activists who are trying to resist the mass deportations that President Donald Trump has made a top priority for the first year of his second term. The Trump administration can appeal the decision, and it has a decent track record this year of overturning lower-court losses. A separate federal judge in a related case previously declined to...