Being the opposition party is always easier, all you have to do is bitch and complain and not have any real responsibility, but you still get all of the perks of being in Washington, DC.
What do they care, really? The establishment of both parties are one in the same. They're members of the same country clubs, send their kids to the same private schools, spend their weekends with each other laughing and joking. Their comfortable lifestyles will not be impacted regardless of which party is in power. And should they get voted out of office, they'll have Cadillac pensions on top of guaranteed six-figure consulting jobs in the private sector.