"Execrable! I just found out that President Obama had tapped my lines in the Trump tower just before my victory," Trump wrote in a very early tweet of tweets, calling the former Democratic president " Harmful (or sick) ".
This is the most violent attack against his predecessor since taking office on 20 January. Barack Obama's entourage has not reacted in the immediate future.
"It's McCarthyism," Trump said, referring to the stalking of communist militants and sympathizers in the United States in the 1950s. Donald Trump also drew parallels with the Watergate scandal, Political espionage that resulted in the resignation of Republican President Richard Nixon in 1974.
"I'm sure a good lawyer could do a good job of the fact that President Obama put my phones on tune in October, just before the election!" Said Donald Trump who spent the weekend at his property Of Mar-a-Lago in Florida.
very tense relationships
"A president can not order tapping," reacted on Twitter Ben Rhodes, a former close adviser to Barack Obama. In principle, only a court has the power to make such decisions.
Until the November election, Barack Obama and Donald Trump had a very tense relationship. For several years, the billionaire had spearheaded the "birthers", claiming with racist hatred that Barack Obama was born in Kenya - his father's country - and not in Hawaii and that, consequently, he Could not preside over the United States. He finally stuck to reason in September 2016, stating unadornedly: "President Barack Obama was born in the United States, final point."
Barack Obama, for his part, had launched very violent attacks against the Republican candidate during the election campaign. Then the two men had spoken at the White House two days after Donald Trump's victory and had played the appeasement. "Mr. Chairman, it was a great honor to be with you," the Republican said in a very posed, almost intimidated tone.
These attacks against Barack Obama are in a difficult political context for the American president. Six weeks after joining the White House, he is stuck in accusations of collusion between his entourage and Russian officials during the campaign and during the transition period.
The press revealed this week that the Russian ambassador to the United States, Sergei Kisliak, had met before and after the election several advisers or relatives of Mr. Trump.
One of the participants in these meetings, Minister of Justice Jeff Sessions, was placed on the defensive. Faithful of the first hour of the republican candidate, he had discussed with Mr. Kisliak while he was still senator of Alabama (south) in July. He had seen him in his office, in Congress, in September, even though Russia was already publicly suspected of having pirated the Democratic Party to hurt the campaign of Democrat Hillary Clinton.
The minister, who described these meetings as normal but failed to mention them during an oath hearing before the senators, announced on Thursday that he was recusing in all potential investigations into the election campaign and therefore on possible Russian interference. So one of his assistants will oversee these investigations.
Another close to Donald Trump, Michael Flynn, a national security adviser, was forced to resign on February 13, also because of contacts with the Russian ambassador.
Under the Obama administration, the United States had directly accused Russian President Vladimir Putin of wanting to influence the outcome of the election in favor of Donald Trump. And sanctions had been taken against Moscow in December.
Donald Trump rejected any allegations of an agreement with Russia. It is a "witch hunt" led by the Democrats, he accused this week.