FBI Director Chris Wray said on Sept. 16 that his agency hasn’t seen any attempts thus far by foreign actors to attack the U.S. voter registration databases in the run-up to the November elections, or any attempt to tamper with vote counts.

The FBI released new election security resources as part of its Protected Voices initiative on Oct. 23.

In a letter released Thursday, Rep. Jerrold Nadler, D-N.Y., questioned the Trump administration’s commitment to election security and pressed administration officials to communicate more clearly with Congress about the issue.

A pair of U.S. senators wrote to the heads of the Department of Homeland Security (DHS) and Federal Bureau of Investigation (FBI) on Friday, imploring them to work with social media companies to root out election interference on their platforms and asking the agency heads for more information on the steps they’ve already taken to do so.