The red bar is the the tax rate Mitt Romney will pay in 2013 if Congress makes no changes to tax law. The black one is what Mr. Romney pays now. Working off data from Citizens for Tax Justice, Greg Sargent writes:
This is about more than Romney's tax burden; it goes to the very heart of what this election is all about. The GOP is set to nominate someone who not only disagrees with Obama about what constitutes fair taxation. Romney personally embodies, and personally benefits from, everything that Obama and Dems will allege is unfair about our current tax system and all the ways the economy is rigged for the rich, and against the middle class.
Ezra Klein posts another chart, one that compares the tax rates paid by presidential candidates going back to Michael Dukakis. Barack Obama's was the highest.