Washington (CNN) The jury selection process for former Trump campaign chairman Paul Manafort's second criminal trial began Tuesday morning with an understated gathering of more than 120 potential jurors in the federal courthouse in Washington.

One by one, potential jurors carrying purple pieces of paper with court information, backpacks, messenger bags and books filed into the long pews in the large ceremonial courtroom on the courthouse's top floor.

A jury in Alexandria, Virginia, found Manafort guilty two weeks ago of eight federal banking and tax crimes related to his Ukrainian lobbying income. Manafort is charged separately in Washington federal court with seven counts of conspiracy, foreign lobbying violations and witness tampering. He has pleaded not guilty.

The DC residents were told by the judge from now on they may not speak to anyone about the case or read news coverage about it, and they were asked to fill out 50-question forms probing their personal experiences, which ask them about their backgrounds professionally, with law enforcement and with the case.

The questionnaires are meant to help weed out jurors who know too much about the case before the trial begins or could not weigh the case impartially.

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