Texas Secretary of State Rolando Pablos confirmed this week that he has asked state Attorney General Ken Paxton to open an investigation into the Democratic Party’s attempts to ask non-citizens to sign up to vote. “The numerous calls and complaints we have received regarding pre-filled voter registration applications sent to ineligible voters are highly disturbing,” Mr. Pablos said in a statement Monday. He was referring to mail the state Democratic Party sent out urging people to sign up to vote, and warning of deadlines if they didn’t act quickly. The mailing included a voter application that already had the boxes...