Venezuelan President Nicolás Maduro declared victory following Sunday’s National Constituent Assembly election, culminating a chaotic run-up to what was largely viewed as a sham election meant only to consolidate powers with Maduro, now a de facto dictator in the eyes of the opposition and the United States.

Speaking at a White House press briefing on Monday, National Security Advisor H.R. McMaster said “Maduro is not just a bad leader, he is now a dictator,” and “the President promised strong and swift actions if the regime went forward with imposing the National Constituent Assembly on the Venezuelan people, and he will keep that promise.”

In the same briefing, fresh sanctions were announced on Maduro directly.