Longtime GOP pollster Frank Luntz said in a Wednesday interview he is seeing a “broad shift” in the 2024 polls toward Vice President Harris as she rides her “intensity advantage” and as former President Trump increasingly commits “political suicide.”

Luntz said Harris’s recent enthusiasm boost has tapped into part of the electorate that might not have otherwise voted in November had President Biden remained the party’s nominee. He predicted that could have a downballot effect in an interview on CNBC’s “Squawk Box.”

“She’s bringing out people who are not interested in voting for either Trump or Biden. So the entire electoral pool has changed,” Luntz said. “And if it continues in this direction, you have to start to consider Democrats winning the Senate and Democrats winning the House.