It's unique to Trump. The only nuke related programs I'm aware of that were going during the Obama admin were the new fuse research program and the very beginnings of the ground based strategic deterrent program, which is going to be the replacement of the Minuteman III ICBMs.
On the other hand, Tillerson famously referred to Trump as a moron after Trump asked why the US wasn't working to expand our nuclear arsenal.
On the other hand, Tillerson famously referred to Trump as a moron after Trump asked why the US wasn't working to expand our nuclear arsenal.