LONDONDERRY, N.H. — Ted Cruz on Tuesday ended his two-month absence from this early voting state with a provocative tour that featured him ratcheting up his rhetoric against all the usual suspects and a less frequent target: his chief rival for the Republican presidential nomination. Over just seven hours on the ground here, the U.S. senator from Texas debuted a more antagonistic stance toward billionaire Donald Trump, whom he has been resistant to criticizing for months as the two have emerged as the top contenders for the nomination. In campaign events and media appearances, Cruz made clear his kid-gloves approach to Trump...