"The first attempt at establishing a national minimum wage came in 1933, when a $0.25 per hour standard was set as part of the National Industrial Recovery Act. However, in the 1935 court case Schechter Poultry Corp. v. United States (295 U.S. 495), the United States Supreme Court declared the act unconstitutional, and the minimum wage was abolished."
So says the Wikipedia article on the minimum wage, here.
Adjusted for inflation according to the Consumer Price Index since 1933, the minimum wage in 2011 should have been just $4.34, not $7.25.
So if we should do anything, we should lower the minimum wage, not raise it to $9.00 as President Obama hypocritically calls for. I say hypocritically because President Obama already thinks the lower level around $4.00 is just fine for the residents of American Samoa, who by law make between just $2.68 and $4.69, which is where even now he aims to keep them:
On September 30, 2010, President Obama signed legislation that delays scheduled wage increases for 2010 and 2011. On July 26, 2012, President Obama signed S. 2009 into law, postponing the minimum wage increase for 2012, 2013, and 2014. Annual wage increases of $0.50 will recommence on September 30, 2015 and continue every three years until all rates have reached the federal minimum.
This is thought to be a favor to Rep. Nancy Pelosi, the former Democrat Speaker of the House, which keeps her business pals there (tuna canners) more profitable than they otherwise would be if they had to comply with the federal minimum wage legislation.
Claiming the mantle of the working poor is so much easier than actually vetoing a bill which keeps workers impoverished indefinitely. He didn't veto it but signed it, and the residents of American Samoa remain second class citizens as a result, under the first black president. There's a new massa in town, but it's the same old shit.