Will the Republicans Not Cross the Aisle to Raise Taxes?

The last time a single Republican in Congress voted for a broad base tax hike was 1990. I can't imagine a scenario in which they would cross the aisle to raise taxes to pay for new spending, particularly against a weakened president going into a reelection cycle. Republicans aren't good for much these days, but one thing they are good for is not giving the Democrats easy tax hikes to paid for new spending. They may surrender on a whole host of other issues. But keeping taxes from rising to pay for Democratic spending is probably the one thing we can count on Republicans as taxpayers.