After leading a losing and disastrous gambit that shut down the government over Obamacare last year, Sen. Ted Cruz brushed his critics aside. “I’m not serving in office because I desperately needed 99 new friends.” Fair enough — no one would confuse him for a Dale Carnegie groupie. But the fact remains that to be an effective senator, the Texas Republican needs to get other members to work with him. And, at the moment, the collective membership of the world’s greatest deliberative body would rather stick needles in their eyes. Last week, Cruz brought the 113th session of Congress to...