It looks like Trump campaign chair Paul Manafort will be going to jail sooner rather than later: In a Monday court filing, special counsel Robert Mueller and his team are accusing Manafort of lying to investigators after reaching his plea deal, breaching that agreement.
After signing the plea agreement, Manafort committed federal crimes by lying to the Federal Bureau of Investigation and the Special Counsel's Office on a variety of subject matters, which constitute breaches of this agreement. [...]
As the defendant has breached the plea agreement, there is no reason to delay his sentencing herein.
In addition to voiding his original plea deal, Manafort will now be charged with additional federal crimes.