a. Mitt Romney claims that ObamaCare will raise taxes by $500 billion.
b. It's on! Portman directly challenges Biden.
c. Conservatives divided: George Will celebrates judicial implications of today's ruling, but the National Review condemns it.
d. Josh Kraushaar handicaps the electoral map.
e. Great cheat-sheet on all today's SCOTUS decisions.
f. Is the election now a referendum on ObamaCare?
g. Daily Kos' Jed Lewison: There was a leadership gap today.
Via ABC News, here's Obama in 2009, claiming the mandate wasn't a tax.
Via Buzzfeed, here's Romney in 2007, calling the mandate "ultimate conservatism."