Veteran GOP pollster and political strategist Frank Luntz told CNBC's "Squawk Box" on Wednesday that Vice President Kamala Harris, riding a surge of enthusiasm surrounding her candidacy and bringing in people uninterested in supporting either former president Donald Trump or President Joe Biden, has changed the pool of voters who will decide the November election. If trends continue in this direction, Luntz suggested, Democrats may not only win the presidency and retake the House, but also cling on to the Senate despite a lopsided map that favors Republicans.
"The people who were undecided have all collapsed towards Harris. The people who were weak Trump have all collapsed towards undecided. It's a broad shift," Luntz explained. The previously disenchanted voters Harris is adding to her coalition might not amount to more than a one- or two-percent change in the electoral pool. But that's enough to tip the election for Harris, he said.
