The European Union is coming closer to imposing sanctions on Poland for the government's attempt to take control over the judiciary, a senior official warned Wednesday, but he said the bloc was still open to dialogue.

European Commission Vice President Frans Timmermans spoke Wednesday in Brussels, shortly after Poland's lawmakers voted overwhelmingly to send a contentious draft law that would reorganize the nation's top Supreme Court for more work by a special parliamentary commission.

Timmermans said that the EU was closer to triggering Article 7 against Poland because its recent steps toward the judiciary "greatly amplify the threat to the rule of law" and threaten putting the judiciary "under full political control of the government." But he said that dialogue between the EU and Poland should continue while the legislation is being worked on.

The EU's Article 7 allows the bloc to strip a nation of its voting rights. Article 7 was envisioned to ensure democratic standards in EU members. It requires unanimity among all other member states.

The vote in Poland's parliament, which is dominated by the ruling Law and Justice party, was preceded by a heated debate and street protests. It was the latest in a string of conflicts over the policies of the conservative party, which won power in a 2015 election. The government is also under strong criticism from other EU leaders.

Lawmakers voted 434-6 with one abstention for the commission for justice and human rights to review and issue its opinion on the draft law, which gives politicians, not lawyers, the power over appointments to the Supreme Court and reorganizes its structure.

The head of the commission, Stanislaw Piotrowicz, said it wasn't clear when the commission would convene and when its opinion would be known. He said the number of amendments proposed by the opposition was aimed at obstructing its work.

In a heated debate Tuesday, the opposition proposed more than 1,000 amendments to the draft, which, it says, kills judicial independence and destroys the democratic principle of the separation of the judiciary from the executive power.