Rep. Mark Meadows (R-N.C.), of the House Oversight and Government Reform Committee, went "On The Record" tonight to discuss the apparent hard drive crash of one of Lois Lerner's former colleagues.

“What’s troubling is another day, another hard drive crash,” Meadows said.

He explained that April Sands, an attorney at the Federal Election Commission, resigned for violating the Hatch Act, which prohibits government workers from advocating for candidates.

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During the work day, she often tweeted about politics. In one tweet, she said that people should donate to Democratic Sen. Claire McCaskill.

Another tweet said: “Our POTUS’ birthday is August 4. He’ll be 51. I’m donating at least 51 to give him the best birthday present ever: a second term.”

Meadows said that when the Office of Inspector General went to retrieve her hard drive, it was "mysteriously missing," even though the FEC knew that an investigation was going on.

Meadows said lawmakers "are not going to drop this."

Hear more in the video above.