How is this misleading?
The nominal amount of debt racked up by Bush 43 is $6.1 Trillion.
The nominal amount of debt racked up by Obama is $2.4 Trillion ... or just shy of 40% of the total Bush 43 presidency.
But remember, Obama is only 30 months into his presidency, meaning that his policies are increasing the debt at a rate $80,000,000,000 per month!. If this were to continue for two terms (perish the thought), the total additional debt created in the same period as Bush 43's presidency would equal nearly $8 trillion, or about 33% more. And this does not even account for Obamacare, which hasn't even begun adding to our debt.
Yes, Bush 43 added $6.1 trillion to the public debt. Yes, this was not a success. Obama's supporters have no explanation for why doing more of a bad idea is somehow a good thing.