President Donald Trump called the future of Iran’s government into question, contradicting his administration’s earlier calls to avoid an escalation in fighting.

Nonpartisan polls released this month show that voters have a negative perception of the bill. The House-passed version, which is facing modest revisions in the Senate, would extend the 2017 Trump tax cuts while slashing taxes on tips and overtime, and enact a series of spending cuts to Medicaid and other programs.

Iran defended its right to self-defense, as President Trump doubled down on the claim that the strikes had caused “monumental damage” to Iranian nuclear sites.