Why are republicans not following republican principes

With John Mccain you have to wonder what republican means I thought it ment small government low taxes and managed spending thats within reason. The republicans have been putting up some presidents of late that dont follow one single of these principles...

is it just me or should the republican party disband and let another party that actually follows it own beliefs

because they dont care about republican principals

You make claims but give no examples.

Could it be that it is the Congress that is doing the things you dislike?

The Congress us usually pretty evenly divided so the two main parties make trade-offs in order to get their legislation passed. Using the Senate as an example, it takes 60 people being in agreement to guarantee that any piece of legislation passes the Senate. So, if either party doesn't have a 60/40 majority, they often have to make trades to get things done. (I don't know if or when the Senate last had a party with that kind of majority.)

Remember, Presidents don't MAKE laws. They simply approve or veto them.

I hope you do not take offense,
To that that's gone before;
'Tis only that it's my two-cents,
And not one penny more. §;o)