Based on the latest public and private polling, we are revising our ratings in eight districts. Five of the changes favor Democrats. Of note, GOP Rep. Darrell Issa (CA-49), former chair of the House Oversight Committee, moves to the Toss Up column for the first time since he was elected in 2000. Our outlook remains a Democratic gain of between 5 and 20 seats in the House. Check out our full ratings here. Rating Changes

CA-49: Rep. Darrell Issa (R) - Northern San Diego County: Oceanside Toss Up. As it turns out, it's possible to be the wealthiest member of Congress and still run a very poor campaign. Issa, the former House Oversight chair, has cruised to reelection over a decade, but recently he's been high-profile Trump booster in a rapidly changing, well-educated district where Trump is toxic. Issa introduced Trump at a May rally in San Diego, and just last week Trump named him to his national security advisory council. Issa could have spent millions over the summer to boost his own image and put Democrat Doug

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