NATIONAL HARBOR, Md.—Christopher Beach was trying to defend keeping marijuana illegal to a roomful of conservatives, and it was not going well.
When Beach insisted the drug war has not been a complete failure, laughter rippled through the crowd.
When he said governments sometimes have to protect people from themselves, there were groans and boos.
One after another, audience members stood to quibble with his statistics and accuse him of bad faith. As the discussion drew to a close with yet another hostile blast in his direction, Beach mumbled into his microphone, "This is just getting more fun."
Beach's panel at the Conservative Political Action Conference, titled "Rocky Mountain High: Does Legalized Pot Mean Society's Going Up In Smoke?," was ostensibly a debate. I attended expecting to find conservatives divided on the question, which seems to pit Republican cultural conservatism against the party's ascendant libertarian strain.
But the discussion—which pitted Beach, a producer for the Morning in America radio show hosted by former Education Secretary Bill Bennett, against Mary Katharine Ham, a conservative blogger and Fox News contributor—turned out to be surprisingly one-sided.
"What's your answer—to just keep arresting people, ruining lives?" a middle-aged man named Leo Dymowski asked Beach heatedly. "How are we going to get out of this mess by continuing a completely failed policy?"
Beach said the popular perception that prisons are packed with people who have done nothing more than possess marijuana is a myth. He said the enforcement of drug prohibitions, while expensive, has succeeded in reducing drug use, particularly among children, and drug-related violence. He argued that legalization would not eliminate the black market for drugs but would empower dangerous drug cartels. He predicted unforeseen consequences from the recent legalization of recreational marijuana in two states.
But few seemed to be buying it.
In recent years, American public opinion has shifted rapidly in favor of legalizing marijuana. The percentage of adults who support it has gone from 12 percent in 1969 to 58 percent as of last fall, according to Gallup; in the past decade alone, support for legalization has increased by 24 percentage points. The shift has powered a wave of political victories for marijuana advocates, from the 20 states where medical marijuana is now legal to the unprecedented ballot measures legalizing the drug in Colorado and Washington in 2012. Three more states expect to put pot to a popular vote this year, with referenda on medical marijuana in Florida and full legalization in Oregon and Alaska.
What opposition remains is concentrated among Republicans. According to Gallup, only about a third of Democrats and independents now oppose legalization, compared to nearly two-thirds of Republicans. Opponents of legalization are also disproportionately elderly. The situation closely parallels the party's predicament on gay marriage, which most Republicans still oppose even as widening majorities of the broader public support it.
It adds up to a quandary for the GOP: Should it embrace the unpopular position still disproportionately favored by its members and risk marginalization as a result? Or will the burgeoning conservative voices in favor of legalization win out? Simply put, do Republicans want to be on the losing side of yet another culture war?