Just a few days ago, US Attorney General William Barr published a blackened version of the Mueller Report. And yet: The dispute over the Russian contacts of US President Donald Trump and a possible obstruction of the judiciary is not over, the investigations are not completed. The House Judiciary Committee recently invited Don McGahn, a former Advisor to the President. Trump defends itself against further investigations.

The president does not want to meet the demands of Congress for documents and testimonies from his environment. He will challenge all these claims, Trump said. The Russia investigations of special investigator Robert Mueller had been extremely thorough and now completed. He had cooperated fully, and the investigators had found no evidence of collusion or judicial disability, Trump said, emphasizing, "It's enough."

Mueller had spent almost two years investigating whether there were any collusion between Trump's team and representatives of Russia over Trump's alleged involvement in the US presidential campaign in 2016 and whether Trump was obstructing the judiciary.

Trump: "I'll dry the swamp."

Mueller's final report was published a few days ago. It states that there have been "numerous" contacts between Trump's electoral camp and representatives of Russia. Proof of a crime would not be available. The report also lists Trump's attempts to influence the investigations. The investigators left open, however, whether Trump guilty of the judicial disability.

With their majority in the House of Representatives, the Democrats have in various committees initiated investigations into Trump, summoned witnesses from his environment and requested documents under penalty of punishment. Among other things, this is about Trump's finances and security checks for the White House. Ex-counsel McGahn is due to appear for a congressional hearing on May 21. He is one of the key figures in the Russia investigations.

The White House wants to defend the demands for documents and witness hearings now, according to Trump juridically. It should be over, he said. The Democrats tried to continue with the "witch hunt" even after the end of the Mueller investigation, instead of focusing on the legislation for the country. He would not accept that, said the president. "I'll dry the swamp."

At the weekend Democratic US presidential candidate Elizabeth Warren had even called for Trump to be impeached. The US president wrote on Twitter: If the Democrats should try such a procedure, then he will move to the US Supreme Court.