I'm assuming it's increasing the long term capital gains tax rate. According to http://en.wikipedia.org/wiki/Capital_gains_tax_in_the_United..., the short term rate is as arjunnarayan suggested, barring any differences in exemptions between capital gains and income tax rates.
It's also an issue of timing and deferral. Because one can offset short-term capital gains with capital losses, and individuals generally have absolute control over realization of capital gains, the effective rate on capital gains can effectively be zero or near-zero given sufficient liquidity, despite a statutory rate equal to the ordinary income rate.
