It depends when in time you compare them. Merkel did come out against a federal minimum wage at one point (during the election). IMO, that is more "right-wing" in the sense people usually mean by it (although I don't particularly like the term). As far as I know, Obama has never publicly criticized the federal minimum wage.
Basically both politicans don't want to change anything about the minimum wage but stay with the status quo.
The German solution was over long time to have binding contracts between employers and unions about what minimum wage had to be payed in certain sectors.
Even employers in that sector that didn't engage in the negotions were supposed to be bound by them.
Some sectors such as temp work then has gotten by law a minimum wage that pays €7.50 = $9.97 because there no binding labor contracts. That a lot higher than the US minimum wage of $7.25 = €5.44.
It f...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Of course, for "every Monday", the last one should have been dated July 22-28. *cough*