Yes, Michele Bachmann really did vow to drive gasoline prices to less than $2 per gallon if she is elected president. So either she does not understand how free markets work, or she is simply against them. She is hypocritically promoting government interference in a market even though she claims that the government should get out of the way of markets.
Of course, if she completely destroys the world economy then the price of oil just might fall that much. The last time gasoline was under $2 was in the middle of the Bush recession.