How did the red guard sustain mao's permanent revolution

What might balance federal and state powers present a problem

Which statement is an example of direct democracy? a) people elect a senator to the u.s. congress. b) the town council approves funding for a new high school. c) the president issues an executive preventing states from executing prisoners. d) voters approve an amendment allowing elderly people to pay nothing in property tax.

How was louis and clark expedition event unfolding and what was going on