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UPDATE #51: Politico's Emily Schultheis points out that while the White House may be celebrating, some congressional Democrats are treading a little more carefully:
"[A] handful of Democratic candidates in red states are walking a delicate line on the issue—not alienating the Democratic base by criticizing the law too harshly, but also not praising the decision quite as enthusiastically as many national Democrats or blue-state elected officials." Read more.
UPDATE #50 1:59 p.m.: Mitt Romney has promised to scrap Obamacare. Slate's Matthew Yglesias explains how—and why—he could make that happen
