Venezuela's high court suspended the inauguration of four recently elected lawmakers on Dec. 30, 2015.

As the Associated Press reports, Venezuela's opposition party is calling the Supreme Court decision a "judicial coup."

As previously reported, Nicolas Maduro promised to investigate the Dec. 6 election which he claimed was marred by vote buying.

Jesus Torrealba, the secretary-general of the right-wing Democratic Union Coalition party, was so concerned over possible government actions against the newly elected lawmakers that he sent a letter to the Organization of American States, Mercosur, the United Nations, and the European Union asking for help. "The country, the region and the world face a judicial coup d'état attempt against the decision the Venezuelan people made at the ballot box," he wrote.

Opposition leaders have pledged that, regardless of the Supreme Court ruling, the barred lawmakers will attend the first session of the new congress on Jan. 5.

The conservative opposition party won control of congress for the first time in over a decade. The coalition won 112 out of 167 seats, giving it a two-thirds majority by one seat.

Wednesday's ruling has undermined the party's super-majority.

Initially, Maduro seemed resigned to the opposition party taking the majority of the house seats.

The Associated Press reports that he asked his supporters to accept the election results even as he blamed right-wing forces for creating circumstances which led to his party’s defeat. "I can say today that the economic war has triumphed," said Maduro.

U.S. Secretary of State John Kerry congratulated Venezuela on its election results, but issued a statement cautioning the country to prepare for post-election obstacles. "Dialogue among all parties in Venezuela is necessary to address the social and economic challenges facing the country, and the United States stands ready to support such a dialogue together with others in the international community," wrote Kerry.