Sorry Mr. Nutting, but there's no "tyranny of the minority"...
Tyranny: "A government in which a single ruler (a tyrant) has absolute power"
The minority can't enforce their wishes on anyone directly - they simply have the power, if they are a highly significant minority, to stop certain wishes of the majority being forced upon them ("tyranny" of the majority). Minorities having some power to block actions of the majority is a great check on government power, and we're fortunate to have it.
There are many legislative bodies in the world, maybe we could talk about process and policy in an informed way instead of whipping out the tyranny card every ten minutes.
The senate is critical and not to be abolished.
Today, states command less loyalty than baseball teams, and are covered so poorly in the media that they are close to unsupervised by the people. They're an anachronism, why should we care about their individual power?