Elsewhere: the Scourge of Bottled Water, More on Sotomayor

Assemblyman Greg Ball now officially may challenge John Hall.
David Weprin is on a roll.
David Paterson joins Eric Gioia in the fight against plastic water bottles. 
Political IV is proud of John McHugh’s bipartisan-ness. And very disapproving of Nancy Pelosi’s lack thereof.
Bloomberg appointee Betsy Perry resigned over her Huffington post.
In case you missed Bill Thompson’s reaction ( and Bloomberg did not), his campaign twittered it.
Megan Taylor talks to people in the neighborhood of the last N.Y.P.D. gun buyback about how effective they think it is.
Marc Ambinder notices that the White House is not going out of its way to defend speculated-about Supreme Court candidate Sonia Sotomayor.