Who's in charge here?

This morning the TV news announced that the IRS would be publishing new rules for non profit organizations, such as Tea Parties. 
   Where does a bunch of pure democratic civil servants get the right to set that kind of policy?  By rights, Congress should pass a law.  In real life, Congress is so split, and so partisan that it is incapable of passing anything.
   Especially on something like this.  First Amendment freedom of speech and press, means organizations can say and publish anything they like.  IRS  and FEC want to change that rule, into "You cannot say anything political, any time.  This led to the famous Heller decision, the Supreme court ruled that corporations and labor unions could politick as much as they like. 
  Anyhow the IRS wants to make a rule, defining just about everything as political activity and therefore forbidden to nearly every organization in the country.  We are talking about Tea Parties, Sierra Club, Boy Scouts, Red Cross, NRA, NMRA, Elks, Chamber of Commerce,  Shriners, Republican Party, Democratic Party, Consumers Union, Campfire Girls, Masons, VFW, churches, AMA, ABA, SAE, Salvation Army, USO and on and on.
   These "non governmental organizations" do immense amounts of charitable work  They bring Americans together, they set up civic events, and they form the civic glue that holds the country together.  And, they lobby for their political interests.  Wise Congressmen listen to them, laws they support get passed, laws they oppose don't pass.  Much of the work of democracy is guided by these non governmental organizations. 
  And now the IRS is trying to take them all over.