I just got an email from the Bera campaign saying his lead has grown to 5,696. No information on how many votes are left, but it is getting better and better. I will update with more info when I get it.
UPDATE: Bera has 51.1% of the vote and there is 31,000 Provisional ballots and 7,700 vote-by-mail ballots. This means Lungren would need to win over 57.4% of those votes to take the lead