Successful American companies tend to think that the Federal Government will honor their achievements and not cause them trouble. Until a dozen or so years ago, Walmart had a 3-person Washington office, and visiting executives had to take cabs to their meetings. Microsoft and Google thought they were above suspicion for the longest time and only in recent years built up DC offices and hired lobbyists.
That was then. Today the Wall Street Journal reports that Google is making a concerted effort to support Republican groups. Officials apparently felt that they had been too close to Democrats and needed to broaden their appeal and their support. That's politics.