But even then they set new norms for obstructionism; for example, they refused to vote on a Supreme Court nomination, something unprecedented in U.S. history, and refused to do anything about the sequester, again an unprecedented act. I'm pretty sure they refused to provide aid to Flint for their water crisis and or to provide funding for the Zika virus.
If it costs them nothing politically - and what were the consequences of their obstructionism mentioned above? - they will do it. The Democrats, who do little to confront and extract costs from the GOP, are effectively complicit IMHO.
EDIT: Some edits
Exercising Congress's prerogative to vote and not vote on whatever it damn well pleases is fair game.
[0] https://www.washingtonpost.com/news/the-fix/wp/2016/09/15/ha...
I strongly disagree. Politicians have always balanced their interests with others, such as those of the nation. They have the power to destroy the country, physically (by engaging in nuclear war, as a simple example) and politically (e.g., they could impeach every president, pass destructive laws, and never confirm Supreme Court nominations). It's not at all "fair game"; their responsibility is to govern the nation to the best of their abilities and to be responsible to the rest of the world. There's a reason that the current Congress' actions are unprecedented.
Again, I disagree. IMHO, speaking generally, the Republicans seek only power to an unprecedented degree. Again, see my examples above. They've undermined the White House, Congress, and Supreme Court, as well as the military, and many other essential institutions. They openly deceive the public on climate change; that does nothing for the country, it puts the nation and world at great risk.
something unprecedented in U.S. history
Hardly. For 10 such examples, see:http://thefederalist.com/2016/02/16/10-times-democrats-vowed...
And that assumes you believe the Federalist, a highly partisan source.
http://www.senate.gov/pagelayout/reference/nominations/Nomin...
A cursory glance at the page you link to tells a dramatically different story than the one you're telling. John Roberts was originally nominated to replace Sandra Day O'Connor. Then Rehnquist died and Roberts was renominated to become Chief Justice.
In the case of Harriet Miers, everyone was opposed to her, including the right who called her unqualified. http://www.washingtonpost.com/wp-dyn/content/article/2005/10...
No one is saying that Merrick Garland is unqualified. It's a naked political ploy with no modern (or historical?) precedent.
"Former Democratic Senate leader Robert Byrd explained it well in a 2005 speech endorsed by then-Senator Joe Biden, among others:
There is no stipulation in the Constitution as to how the Senate is to express its advice or give its consent… The Senate can refuse to confirm a nominee simply by saying nothing and doing nothing"
https://www.washingtonpost.com/news/volokh-conspiracy/wp/201...
Quite simply, stonewalling Merrick is more destructive partisanship, but its not without "modern (or historical?) precedent".
The only approval rating that matters is the approval rating from their own constituents. And that's always been a lot better than their overall approval rating.
Or to put it another way, "everyone thinks Congress is doing a bad job, but they think their Congressman is doing a good job".
A good point, but remember that most are in single-party districts; they need to please people in their party primaries but the voters in the general election have no choice.