Special Counsel Robert Mueller is seeking to revoke the bail of President Donald Trump’s former campaign chairman, Paul Manafort, for allegedly tampering with witnesses in the year-long probe into Russian meddling in the 2016 election, according to a court filing Monday night.

Attorneys with the special counsel have accused Manafort of “attempting to tamper with potential witnesses” while awaiting his trial, which thereby “has violated the conditions of his release.”

In February, within days of Mueller’s filing a 32-count superseding indictment against Manafort, the former Trump campaign chairman allegedly contacted two individuals who worked with him on a lobbying scheme to aid his Kremlin-backed Ukrainian clients.

The two individuals were members of the “Hapsburg group,” described by Mueller in the February superseding indictment of Manafort as “a group of former senior European politicians to take positions favorable to Ukraine, including by lobbying in the United States.”

U.S. President Donald Trump gestures toward…