For example:
Read the whole list here...
RAISING TAXES
STATEMENT: “No family making less than $250,000 will see any form of tax increase.” (multiple times on the campaign trail)
EXPIRATION DATE: Broken multiple times, including the raised taxes on tobacco, a new tax on indoor tanning salons, but most prominently on February 11, 2010: “President Barack Obama said he is “agnostic” about raising taxes on households making less than $250,000 as part of a broad effort to rein in the budget deficit.”
Source: National Review