Gov. Chris Christie's former press secretary took the stand at the Bridge-Gate trial Wednesday.

Michael Drewniak says he sent a text message to the governor that said, "A new high level of sh** is hitting the fan on the Ft. Lee/GWB issue. Maybe you should know about it."

Drewniak testified that he sent that text a few weeks after the lane closures and gridlock in Fort Lee because there was a concern growing among Christie staffers about the mysterious "traffic study."

Drewniak worked with defendant Bridget Kelly, and he says that he spoke with Bridge-Gate mastermind David Wildstein early in December 2013, three months after the lane closures. Drewniak testified that Wildstein told him that Kelly knew about one lane closures.

Wildstein also apparently told Drewniak that the governor was informed about Bridge-Gate while it was happening. Drewniak says he then gave Gov. Christie all the information that he had on the issue.

The governor would later deny that any of his senior staff had knowledge of the plot.

Wildstein pleaded guilty to the plot in part of a plea deal.

Kelly's defense attorney says that she is eager to tell her side of the story. She is expected to testify before the end of the week.