Only 19% of the millions of US registered voters actually voted in the last Presidential election, that alone should indicate how Americans no longer believe their vote counts for anything. However 9/11 probable contributed more to distrust than any other event in US history as the majority of America does not believe the US Governments' version of events.
The continuous lies (WMD) that are being revealed over and over again (Bhengazi), Chem Trails, FEMA (Hurricane Katrina) just leads to further distrust and then a 16 day shut down for no apparent reason and the list goes on and on . . . !
The Fake Stream Media does not help the situation by their utter lack of diverse reporting and investigative practices (school shootings).