A few years ago, a tax nerd at the Roundhouse could catch murmurings of “deductions,” “exemptions,” and “credits” — the tell-tale sign of tax talk — while strolling past law-makers in the hallways or overhearing side conversations during committee hearings. Tax reform as a goal has progressed since then. In the past two years, the movement has interested a larger number of public officials, including Gov. Susana Martinez. Last year, competing concepts jockeyed for primacy. A bipartisan bill wasn’t in the cards.