Don't mess with Texas

I think the president might have a warped sense of the role of Texas in the linguistic history of American English. Consider the following examples:

I was the guy that said they [the U.N.] ought to vote. And one country voted -- at least showed their cards, I believe. It's an old Texas expression, show your cards, when you're playing poker. France showed their cards.

-- G.W.B., Lajes, Azores, Mar. 16, 2003

An old Texas expression? Hmm. I can see how he might think this -- Old West, cowboys, etc. That one was not so bad.

First thing that Medicare has done is it says that if you're -- when you join Medicare, you get preventative screenings. Put in Texas terms, in order to solve something, you got to diagnose it.

-- G.W.B., Atlanta, Georgia, Jul. 22, 2005

Texas invented this idea. Good to know.

But my favorite is this one, which he said last week:

Let me put it to you in Texan. If Al Qaeda is calling into the United States, we want to know.

-- G.W.B., Nashville, Tennessee, Feb. 1, 2006

Which part of that sentence is Texan? Please help me.