Texas Attorney General Ken Paxton threatened two of the state’s most populous — and Democratic-leaning — urban counties with lawsuits over their plans to register voters by mail. Paxton wrote letters Monday to Harris and Bexar counties, claiming their mailing of voter registration forms would either “confuse” noncitizens about their eligibility to vote, or “induce” them to fraudulently register. “Either way, it is illegal, and if you move forward with this proposal, I will use all available legal means to stop you,” Paxton wrote. The attorney general pointed to his 2020 suit against a similar effort to send out vote-by-mail...