When most of the rest of the 2016 Republican presidential field issued fiery statements denouncing the Iran nuclear agreement, Kentucky Sen. Rand Paul, R-Ky., remained silent. Late Tuesday afternoon, Paul broke that silence by coming out against the deal.

“The proposed agreement with Iran is unacceptable and I will vote against the agreement,” he wrote on Twitter, objecting that “sanctions relief precedes evidence of compliance” and “Iran is left with significant nuclear capacity.”