Speaker Nancy Pelosi told House Democrats on a call Wednesday evening that she will require masks to be worn on the floor of the House.

Why it matters: The announcement comes after Rep. Louis Gohmert (R-Texas), who has rarely been seen wearing a mask in the halls of Congress, tested positive for COVID-19 on Wednesday.

The big picture: Even as President Trump and members of his administration have pushed for mask-wearing in recent weeks, some House Republicans have continued to resist.

• Gohmert suggested on Wednesday, without evidence, that wearing a mask may have contributed to his infection.
• Rep. Clay Higgins (R-La.) told CNN's Manu Raju last month that wearing a mask is "part of the dehumanization of the children of God."

Go deeper: A consensus is finally emerging on masks