There's no mention of Soros in his quote at all and as far as the quote goes he's right and it actually reads as a quote in opposition to everything Soros is working for as Soros is wholly against US leadership , preferring UN-like international consensus instead:
As former president George W. Bush said in an important address on Thursday, For more than 70 years, the presidents of both parties believed that American security and prosperity were directly tied to the success of freedom in the world. And they knew that the success depended, in large part, on U.S. leadership.
Leave it to the Wash Compost to spin anything.
I’ll still never trust W again, though.