You don't agree with cutting pay of congressmen or the president?
It's empty rhetoric. Even if we cut their pay to 0 wouldn't even save $1 billion over the now customary 10-year budget framework. All low pay does is make office holding the province of those too dumb to make money in private business, those who hope to turn a few years in office into lucrative remuneration later because the influence they wield, or those who get their kicks from being able to make people beg for their support on various laws.
We get what we pay for. If you want crappy people in government then pay them crap. It would be reasonable to argue we have too many Congressmen and/or they have too many people on their staffs, but cutting their individual pay is just a silly political stunt and our budget problem is too big to be solved by stunts.