You will hear people say that due to pollination, air pollution, or the intervention of the Alien Overlords (OK. I made that last one up. But people get a little extremist at times) there is no such thing as organic food any more.
Yes, any government official can be impeached - Presidents, Legislators & Judges, etc. But you can't impeach people for doing a bad job. Impeachment is necessarily dependent upon a charge of criminal or significant unethical behavior to warrant removal. Yes, Granholm is awful, but we're stuck with her for 4 more years.
In the US Federal Government, the House of Representatives impeaches government officials and the trial takes place before the Senate. The House votes on the articles of impeachment, requiring a simple majority to pass them. Upon passage of the articles, an individual has been impeached. Blagojevich is a state official and must be impeached by the Illinois State Legislature. The Illinois impeachment process is similar to the federal impeachment process, but not all states follow the same model. State impeachment proceedings take place according to each state's constitution and can vary widely.