Overall, the concept that the two political parties in the US are actually indistinguishable - the party of ONE. The two parties are not actually parties but rather, two halves of a symbiotic system. They are indistinguishable because the output of the system remains the same, regardless of which half is 'in power'. Either half, when 'out-of-power,' is obligated to obstruct ANY/ALL progress by the other half while screaming the half 'in power' is about to destroy the country. All problems and issues of the country are explained as having been caused by the other half.
In this party, you don't vote FOR a President, you defensively vote AGAINST the other candidate. You choose 'lesser' evils. If you give the Presidency to one half, you generally try to give Congress to the other half to minimize the damage either half can do to you.
Because NEITHER half is interested in what the public wants, the single party therefore generates a lot of unhappiness. This dissatisfaction guarantees regular and routine trades of where they hold 'power.'
They are also sometimes referred to as Tweedeldee and Tweedeldum but due to the indistinguishable nature of both pairs, it has never been clear how they should be paired.
Members of both the Demopublican AND Republicrat halves BOTH:
+ over-promise and fail to deliver.
+ ignore what the public wants.
+ promise to cure all your problems.
+ blame all problems on the other half.
+ obfuscate when asked pointed questions.
+ sell themselves to lobbyists.
+ scream for campaign reform when 'out of power'.
+ obstruct the formation of any 3rd-party and resist its participation in campaign activities (e.g., televised debates).
+ prevent any individual really worthy of the Presidency from receiving their 'party' nomination.