What does Hillary Clinton stand for?

This video explores the question and makes good points. Clinton ignored major issues until after Sanders proved they were popular. Not only that, she previously supported the opposite positions. She doesn't have a Senate record of actually standing up for the positions she now says she champions. This is why Wall Street continues to pour their money into her, as they know she's just talking and will do their bidding. Do the Democrats that support her actually believe her populist positions? If so, based on what evidence? Seems most of those supporters and themselves corporate sell-outs, know Clinton is too, and echo-chamber the talking points to fool the uneducated and ignorant base to vote once again against their own, and the country's, best interests.