Who is paying him to say this?
As far as Chuck Schumer goes, the information is here.
I'm sorry.. the last 2 years especially have left me with nothing but cynicism.
It's not cynicism, it's realism. It's a simple understanding of normal, rational human nature, and how the system works. The Founders instituted a system of checks and balances because they understood it would be self-interested, normal, rational humans who would be leading the country. They weren't cynical in doing this, merely taking into account reality and trying to reach the best outcome.
I hear politicians always say, to the effect, "Trust us, or else you're cynical." It's stupid and naive to believe their words. Look at their actions, and who is paying them to get a clearer picture of what they're trying to accomplish. They are normal, rational, self-interested people and will do things to help their current financial position, their future financial position, help their friends and contributors, and punish their enemies.
Be skeptical of politicians. The Founders were.