Tricky Thursday, What is the name the RIVER in this Picture?

Tricky Thursday, What is the name the RIVER in this Picture?

If the question was... What City is this? most would have no problem getting it right.

But it's Tricky Thursday, and the question is...

What is the name of the River in this Picture?

Correct answer will be given tomorrow (Friday).

Updates
6 mo
Since some may have problems identifying where this is, here's a hint...
The white pointy thing in the upper left is the Washington Monument, with the White House partly visible behind it.
The white domed building in the upper right is the US Capitol.
Updates
6 mo
This is the Potomac River, which forms the border between Maryland and Virginia, and between Washington DC and Virginia.
Tricky Thursday, What is the name the RIVER in this Picture?
Post Opinion