[A Navy Vet]

"I think I read somewhere that US Presidents have the power to unilaterally sign treaties. I think it came up when Obama was on one of his apology tours."

Yes, a President can sign a Treaty, but to be lawful it needs Senate approval. I think Obambi's stuff was call "mutual agreements", not Treaties. But then, he did lots of EO's and other stuff to get around US Code and Constitution, not to mention ignoring court findings.
Of course, it was all ignored by the socialist MSM.

[morphing libertarian]

I think Obambi’s stuff was call “mutual agreements”, not Treaties. But then, he did lots of EO’s and other stuff to get around US Code and Constitution, not to mention ignoring court findings.
Of course, it was all ignored by the socialist MSM......

.......AND THE REPUBLICAN PARTY