Obama was OK..but I'd not call him a success past the Stimulus.if he was a success his party would not have been routed from power.
Even Obamacare was fatally flawed - although there is plenty of blame to go around for that
His foreign policy was feckless and damaging to US interests. His domestic policy got all weird PC-
and entrapped many good ideas because of strange Dem's inability to advocate for the working class.
See how it goes for Trump - I'm sure Clinton would have taken us down the road to further stagnation/war.