Ghana's opposition leader Mahamudu Bawumia has taken aim at the ruling party's signature economic promise. The NPP flagbearer publicly asked where the government's celebrated 24-hour economy actually is. He challenged the administration of President John Mahama to show tangible results rather than slogans. His own verdict on the policy was blunt, suggesting it remains little more than a campaign talking point. The 24-hour economy was central to the NDC's winning platform, promising round-the-clock commercial activity and new jobs. Backers of the government would counter that a reform of this scale takes time to materialize. Bawumia's challenge sets up an argument likely to run through Ghana's political season. The ball, for now, sits in the government's court to answer his question.