This is liberal smoke and mirrors. Largest percentage increase? If the debt is ten dollars and it increases to twenty dollars, it's a large percentage increase, but not the largest increase. Nope, obama holds that record, trumping all other presidents combined. Bush? The deficit decreased to $162 billion, until the Democrats took over Congress, and it jumped to $455 billion. The first year of obama it skyrocketed to $1.4 TRILLION. Clinton had nothing. The Republican Congress did and clinton just signed off on it. A surplus by taking items off budget? Right.