Congressional Democratic leaders have embraced the goal of increased border security in their fight with President Trump, proposing measures to harden the U.S. ports of entry — but omitting the barrier they supported five years ago. The ports of entry, which account for roughly 2.5 percent of the 2,000-mile U.S.-Mexico border, represent a small fraction of the security measures, including hundreds of miles of border fence, that every Senate Democrat supported before Donald Trump became president. Democrats now are limiting the security measures they back to sending more customs officials and deploying new technology at the 48 ports of entry...