Michael Steele and the Fire Pelosi Bus

Michael Steele, chair of the National Republican Committee, came riding into town last week on the "Fire Pelosi" bus to speak to a small group of Republican voters.  
I don't quite get politicians.  They come into town with these catchy slogans but when they speak they don't really have anything to say beyond that catchy slogan.  They like to point out what the other party is doing wrong but never state what they would do.  Do they really think voters are that stupid?  Maybe we are.