The US has lost respect globally under the Obama Administration. After you lose respect, it cannot easily be regained. It will take years, and maybe even a mahor war (which the US will have to win decisively) before the US can regain the respect it had in 2008. Not sure if we can regain the amount of respect we had in 1989 (when Reagan left office).
Now you're talking "uppercase-R" Respect! :O Ain't seen that in a long, long time!