Delaware Democratic Rep. Sarah McBride is the first transgender lawmaker elected to Congress. Democratic Masschusetts Rep. Bill Keating had a meltdown on Tuesday, during a House Foreign Affairs subcommittee hearing, after the subcommittee's chairman called transgender Delaware Rep. Sarah McBride "mister." The exchange occurred during a hearing on arms control and U.S. assistance to Europe. The committee's chairman Keith Self cited a Trump administration order that only recognizes and identifies two genders, which is the person's biological gender. Self, a Texas Republican, introduced McBride, who was the first transgender lawmaker elected to Congress, as "the representative from Delaware, Mister McBride."...