Mr Manafort had already served seven months in home detention in Virginia and was due to face trial in September.
Manafort is the first Trump campaign official to be jailed as part of Mueller's investigation.
"Didn't know Manafort was the head of the Mob", Trump wrote, sarcastically.
Manafort chaired the Republican's presidential campaign during the period when Trump, a former reality TV star, won his party's nomination.
"I feel badly for some people because they've gone back 12 years to find things about somebody".
Manafort allegedly asked two unnamed individuals who had worked with him on lobbying business, including setting up congressional meetings, to tell investigators that their lobbying work had only happened in Europe, and to get their European contacts on the same page as well.
Viewed broadly, however, it says that Mueller is trying to make Manafort as uncomfortable as possible, in hopes that the former top aide will trade dirt on the president for leniency. "It would have to be way down the road". Manafort faces decades in federal prison, not just weeks in a lock-up.
The case against him includes failing to register in the United States as a lobbyist for a foreign government.
Manafort, meanwhile, showed no emotion as the judge delivered the ruling. In December, they accused him of violating a court's gag order by helping ghostwrite an op-ed piece defending his work in Ukraine for an English-language newspaper in Kiev, the Ukrainian capital. If Manafort really did this, consider it a hard lesson learned.
In court filings, defense lawyers accused Mueller's office of "heavy-handed gamesmanship" and argued text messages and an 84-second phone call were "the thinnest of evidence".
"We learned about it because a witness in this case brought forward information about the tampering".
"I think that the Mueller investigation has been totally discredited", Trump said.
Westling did not propose adding any conditions to Manafort's house arrest, only asking that the judge clarify whom he was or wasn't allowed to contact.
Stirewalt said it is not unprecedented to put a "white collar [alleged] criminal in jail", versus one who may cause bodily harm to others, but that it is not a usual occurrence. In that appearance, he talked extensively about an inspector general's report on how the FBI handled the investigation into Hillary Clinton's use of a private email server, but disputed its finding that the decision not to prosecute her was not politically motivated. He pled not guilty. Still, it's unclear if the move will push Manafort to co-operate with prosecutors. Kilimnik is believed to be in Moscow - and therefore safe from arrest because Russian Federation does not extradite its citizens.
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