<span>Adams-Onis treaty is the your answer</span>
The name given to Gorbachev's policy of political openness was called "glasnost."
Impeachment charges are brought against government officials by C. the House of Representatives.
It is the only body which has such authorities as to impeach someone. It can initiate the impeachment, whereas the Senate has the right to try such impeachments, but cannot start the whole process itself - it is what H.O.R. does.
