Texas voters Tuesday overwhelming approved a constitutional ban on same-sex marriage, making their state the 19th to take that step. In Maine, however, a proposal to repeal a new gay-rights law was trailing in early returns. The contest in Texas was decided quickly _ the ban was receiving more than 74 percent of the votes in early returns. Like every other state except Massachusetts, Texas didn't permit same-sex marriages previously, but the constitutional amendment was touted as an extra guard against future court rulings. The campaign had been enlivened over the past week because of a controversial tactic by the...