Dr Alf is right, Obama is pretty useless, and John Kerry is a poor negotiator.
Russia has been “warned”, so like the gunfighter who has been warned in a Western to leave town by 6.00 pm but doesn’t, what does Obama or America do next?
Sanctions on Russia are hurting that country but not breaking their will, so increasing sanctions will not work either. A colour revolution to overthrow Putin has been tried and he is still there so that didn’t work either.
Weather warfare could be deployed but Russia was the first to develop the process in the 1970s and could retaliate in kind so that would not work either.
As things stand Russia will test Obama to ascertain his resolve and thinking ability and find him wanting on both counts.
The sooner Obama is gone the better in my view.