(CNN) Two Republican congressmen met with a well-known conservative troll -- who was banned from Twitter after raising money to "take out" a Black Lives Matter activist and has a history of Holocaust denial -- on Capitol Hill on Wednesday, their offices confirmed.

Reps. Phil Roe of Tennessee and Andy Harris of Maryland met with Chuck Johnson to discuss genome sequencing, according to aides to both members.

A reporter with Huffington Post spotted the group walking in the building and snapped a photograph.

The meeting lasted less than 10 minutes and "there were no additional takeaways or promises for further action," an aide to Roe told CNN.

"Congressman Roe was not aware of this individual's viewpoints nor were they discussed during their brief meeting, and had the congressman been aware he would not have agreed to take the meeting. White supremacist and anti-Semitic views are abhorrent and have no place in our society," his office said in a statement.

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