Texas State Rep. James Talarico (D) has hired a top staffer from the office of the Senate Republican he hopes to replace, a move political commentators viewed as strategically savvy to help him win over independent and crossover GOP voters. The incumbent Republican, Sen. John Cornyn (R-TX), lost a viciously contentious primary to Texas Attorney General Ken Paxton, who scored President Donald Trump's endorsement but is widely viewed as a weaker candidate in the general election due to a series of scandals, lawsuits, a messy and contentious divorce, and other controversies. Talarico, the Democratic nominee, has had a slight lead...