Consider your life and then consider all of the laws that have been been by the people you've voted for over the years or decades. Now consider which laws have have a positive impact on your life.
If you've found a law or maybe even some laws that have had a positive impact on your life, consider whether the impact was short-lived or long-lasting.
If you could think of or find any law or laws that had a positive impact on your life, consider the intended source of those laws. In America, the source is a member of Congress.
Now, consider the fact that some of the members of Congress have been in office since the 1980's and lastly, consider whether you should have continually voted for your "representative" and whether you should continue voting for them or anyone who hasn't delivered on any of their promises.
Fool me once, shame on you. Fool me for decades... Well I'm just a fool. This is why I say, in America "Voting blue no matter who only makes you blue." and "Voting Red til your dead only leaves you seeing red."