This Aug. 5, 2014. (Charlie Neibergall/AP)

Quick — what's the first word that pops into your head when you hear Chris Christie's name?

Sen. Rand Paul's response: "Bridges."

At least that's what he said during a game of word association with Bill Goodman on his Kentucky Educational Television show "One to One," which aired Sunday.

The Kentucky senator's reference was to the "Bridgegate" scandal in which former aides and appointees of New Jersey Gov. Christie snarled traffic in an apparent act of political retribution. It's the latest round of Paul vs. Christie, two Republican rivals and likely presidential candidates who clearly don't like each other.

They have clashed before on foreign policy and national security. And this isn't the first time Paul has prodded Christie over the bridge scandal.

How about other politicians? Paul was game when Goodman rattled off a few other names.

Cory Booker?

"Affable, amiable, tries to get beyond partisanship."

Rick Perry?

"It's hard to put it in one word. What I would say is that I like the fact that he has been for more power for states and for less government in his state. We have some disagreements on some other things." (In-state tuition for undocumented immigrants brought into the country as children is one area of disagreement.)

Hillary Clinton?

"Yesterday's news."

President Obama?

"Affable but often ineffectual."

Marco Rubio?

"Thoughtful and part of the answer to making our party bigger — a good new face for our party."

Okay, that's a lot more than one word per person. But Rubio and Perry probably don't mind.