"If you want to get involved in business," Sen. Orrin Hatch warned technology companies at a conference in 2000, "you should get involved in politics."Hatch was referring to the shortcomings of then-software king Microsoft, which he had spent most of the previous decade harassing from his perch as Judiciary Committee chairman.

The message was clear: If you become successful, you must hire lobbyists, you must start a political action committee, and you must donate to politicians. Otherwise Washington will make your life very difficult.Hatch's crusade against Microsoft was a formative moment in the cozy relationship between K Street and Capitol Hill.

That coziness has become a prime target of the Tea Party in recent years — and so has Orrin Hatch, who faces a primary Tuesday against conservative challenger Dan Liljenquist.