WSJ.com: “You can learn a lot about a candidate by looking at where he or she draws the most contributions. Campaign-finance reports are always studied for who raised the most money and who is struggling for support. But looking at a campaign’s fundraising footprint tells a tale all its own. The Wall Street Journal took second-quarter contribution data from the Federal Election Commission and ranked the top 20 ZIP Codes by dollar amount for several candidates–looking at campaigns, not the super PACs backing each candidate. What emerged was a revealing picture of each candidate’s fundraising strongholds.”