Meanwhile, Healthcare.gov still has plenty of issues. In the final enrollment surge leading up to Monday's deadline, the site repeatedly crashed, and the administration is allowing people who started signing up but didn't finish an extra two weeks to complete the process. While the site is now navigable for consumers (most of the time), its "back-end" software remains unbuilt, forcing insurers to sign people up more or less by hand once they come through the door. Some state-level exchange websites, such as Maryland and Oregon, have failed miserably and had to be completely scrapped. (States could decide whether to build their own exchange or send their citizens to the federal site; 17 states, mostly Democrat-led, are running their own exchanges independent of the federal government.)

Nonetheless, it's clear the doomsayers' predictions for the Affordable Care Act—that the website was totally unworkable, that enrollment would fall dramatically short, that the whole structure of healthcare reform would collapse of its own weight—aren't coming to pass. Some conservative commentators recognize this and are urging the Republican Party to accept it. New York Times columnist Ross Douthat on Monday wrote that "Obamacare, thrice-buried, looks very much alive." Ramesh Ponnuru wrote on Bloomberg View, "It's clear now that one scenario with a lot of purchase among conservative opponents of Obamacare—that the law would 'implode,' 'collapse' or 'unravel'—is highly unlikely," and urged the law's naysayers to "concede defeat."

Democrats are also excited about an ABC News/Washington Post poll released Monday that showed a dramatic turnaround in public opinion of the Affordable Care Act. With 49 percent in favor of the law and 48 percent opposed, the poll found public support for the law at its highest level ever, a staggering rebound from the 40 percent in favor and 57 opposed that the same pollster found at the height of the rollout debacle last November.

If subsequent polls bear out this result, it would indeed be a stunning turn of events, a sign that voters were changing their minds about healthcare reform in a way that could upend the conventional wisdom about the upcoming midterm elections. But as the Republican pollster Logan Dobson pointed out on Twitter, at the moment, the ABC poll looks like a major outlier. Contrary to its 1-point net-favorable reading, nine other national polls in the last month have found sizable net-negative views of the law, anywhere from an 8-point to an 18-point gap. Even those dire readings represent an improvement in some cases: CBS News had the law's approval at -30 in November, down to -12 this month.

This chart from HuffPost Pollster shows that, on average, negative views of the ACA peaked in November and have subsided slightly since then, but remain about 11 points more negative than positive:

All these polls, of course, were taken before the deadline passed. The big question, especially for politics, is what the next round of polls looks like. Does today's flurry of good Obamacare news begin to change Americans' minds about the virtues of the law? Does that, in turn, do anything to lift the president's sagging approval rating and Democrats' gloomy midterm prospects? We'll have to wait and see.

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