Since President Obama's re-election, it has been said the GOP could be on the verge of irrelevance, mainly because of changes in demographics and attitudes among the young.
Yet a new generation of market-minded conservatives could quickly bring the GOP back among young and minority voters if they have the courage to consistently apply their limited-government principles to the drug war.
It should be telling to conservatives that liberal Democrats such as Obama and Sen. Chuck Schumer, D-N.Y., are among the most reliable pro-drug-war politicians on the national scene.
Despite promises to the contrary on the 2008 campaign trail, Obama has ramped up federal raids on state medical marijuana dispensaries, surpassing those ordered by President George W. Bush. More recently, as secretary of state, Hillary Clinton shot down Latin American leaders' suggestion that drug decriminalization be put on the table.
The United Nations has warned the Obama administration that Colorado and Washington, both of which recently legalized marijuana for recreational use, were acting in deliberate defiance of international law and that the administration has a duty to uphold multinational treaties.
These should all have been perfect opportunities for the GOP to demonstrate to young and minority voters that federalism and limited government are principles that apply across the board. Yet instead of seizing the moment and standing up for federalism, Republicans have been silent, choosing to cast their lot with a demonstrably failed policy.
Conservatism is supposed to integrate the wisdom of history into modern affairs. The most reliable guide to good policy, conservatives hold, is not abstract theory but the lessons of experience.
Richard Nixon launched the "war on drugs" with the intention of eliminating the scourge of drug use. Seven presidents, millions of jailed drug users and hundreds of billions of dollars later, we are no closer to eliminating drug use than we were to eliminating alcohol use during Prohibition.