Since most of us see the failed logic of the " gang of eight " immigration bill, I think the corruption involved in the senate is an obvious topic. Six years is too long of a term; it should be four years ( two yrs. is too short, they're always running ).
Remember how mccain used to go around bragging about his mccain/finegold campaign reform bill. I don't know what good it did other than alot of billionaires ( soros ) have been able to pick our candidates for us.
Any time congress tries to rush legislation through it is not done very well and is usually for special interests rather than the voters.