A House candidate running in a special election in Louisiana is up with a new ad playing up Sen. Ted Cruz's (R-Tex.) marathon speech in support of the defund Obamacare effort.

The candidate, state Rep. Jay Morris (R), also says he would support a government shutdown if Obamacare is not defunded.

"The empty campaign promises about Obamacare must end," Morris says in the ad, as video of Cruz plays. "To defund Obamacare, we must defeat the political establishment, even if it means shutting down government."

The ad is a reminder that, while the national GOP balks at Cruz's effort and the prospect of a shutdown, the idea remains appealing to much of the conservative base.

Morris is one of more than a dozen candidates running in the special election for retiring Rep. Rodney Alexander's (R-La.) seat.