Bushnesia is a mental disorder that affects memory.
Many people developed this disorder late in 2008, early 2009 and it continues to spread. Most of the people with this affliction are Republicans and bush supporters. They complain about the huge national debt and the economic disaster that hit during the Bush Administration and they blame Preisdent Obama for the bad effects of Bush's heinous deeds.
The tea party was founded by people who were upset about out of control government and the huge national debt, however due to bushnesia, they're misdirecting their anger at Obama rather than the true source of the problem: George W. Bush and pro-rich Republicans!