On RCP, Thomas Sowell writes about the Supreme Court's ruling on Chicago's gun ban, taking issue with Justice Breyer's assertion that judges should "consider the basic values that underlie a constitutional provision and their contemporary significance."

Also on RCP, former New York City Mayor Ed Koch argues that America cannot win in Afghanistan and therefore should withdraw as soon as possible. Jeremy Lott writes that Joe Biden's efforts to talk up the economy likely won't help Democrats in November.

In another installment of their "Global Top 5's" series, RCW and Gallup rank the countries that are most optimistic about their economic prospects.

On RCM, Josh Barro writes about the increased legalization of "sin" activities such as gambling as states look to generate revenue. Also, Dr. Mariela Resendes argues that the health care reform legislation will hurt doctors, hospitals, insurers and patients.

On RCS, Tim Joyce writes about Andy Roddick's disappointing loss at Wimbledon. Also, RCS ranks the "Top 10 Dubious Sports Records." Finally, check out "The Cup Running Over" blog for previews of today's Paraguay-Japan and Spain-Portugal matches.

--------------------------------------------
Follow the RCP Blog on Twitter.
Become a fan of RCP on Facebook.
--------------------------------------------