Washington (CNN) Rep. Gwen Moore's office is rallying members of Congress to join her in raising a pencil on Tuesday during President Barack Obama's State of the Union address to honor the victims of the terrorist attack on the French satirical magazine Charlie Hebdo.

At least 50 Democratic House members have already told Moore's office they will join her during some of the speech's applause lines when Obama speaks about freedom of expression and the terror attacks in Paris.

"We in no way want to disrupt the State of the Union. We appreciate the fact that all members of Congress will be here at one time to show support and solidarity," said Eric Harris, Moore's press secretary who hatched the idea. "I think it's fair to say that we've never seen this type of political climate before and I think it's important that we show our support."

JUST WATCHED State of the Union: 67 years in 67 seconds Replay More Videos ... MUST WATCH State of the Union: 67 years in 67 seconds 01:09

The gesture became an international symbol of defiance at marches and rallies after terrorist attacked Charlie Hebdo, which prominently featured controversial cartoons.

Read More