Will this week's blue wave election usher in a Democratic president in 2028?

In surfer slang, a wave that lasts a long time is a "runner." A key question for investors is whether the blue wave that washed over the country Tuesday was that kind of wave, and could it ferry Democrats to victory in 2028. CNBC analyzed elections since 1938 and looked at the biggest midterm wave elections where the party in the White House lost seats to determine whether they portend anything about the presidential election two years later. Tuesday's election was the biggest House seat loss for the incumbent party in the White House since 2018, but it only barely makes the historical Top 10. It ranks 10th in CNBC's analysis using an estimate of 41 House seats gained by the opposition party as close races are still being tallied .