You can't have one party whose goal it to make sure government doesn't function in order to push their policy of 'shrink government' be in charge of making government function. No system will work when half the system is hostile to the system.
If the Republicans will happy spend money until we are all broke if it means we can limit the government's spending (huh? what? make that make sense) they will break it all (and are trying) in whatever way they can.