Sizing up the blue wave: From the Politics Desk

Welcome to From the Politics Desk, a daily newsletter that brings you the NBC News Politics team’s latest reporting and analysis from the White House, Capitol Hill and the campaign trail.In today’s edition, Scott Bland takes stock of the scope of Democrats’ gains in the House.Plus, Alexandra Marquez examines how the party’s midterm success could affect the next presidential contest.
— Adam WollnerSizing up the blue waveAnalysis by Scott BlandDemocrats’ performance in Tuesday’s election was obviously big — you can’t reach an estimated 259 House seats without sizable national margins.A historical look shows just how massive the results were, too.Democrats are on track for the second-biggest House popular vote edge in the last 50 years.This will also be the largest midterm margin for one party since 1974, when the country punished the Republican Party in the first election after Richard Nixon resigned following the Watergate scandal.With more votes still left to count, especially in Democratic-leaning California, House Democratic candidates have captured 55.3% of the national vote, compared to 43.3% for Republicans.
That’s an 12-point margin — more than Democrats in 2008 (10.5 points) or 2018 (8.6 points) and more than Republicans in their wave years of 1994 (6.8 points), 2010 (6.6 points) and 2014 (5.8 points).Ben Kamisar, Sarah Sternhagen and Stephen Pettigrew zeroed in on the shifts in the House races that were rated as “battleground districts” by NBC News’ Decision Desk before the election.The average “battleground” district’s margin moved almost 17 percentage points toward Democrats when compared to the 2024 presidential margin there, according to a review of the election results in 21 of the 28 battlegrounds where at least 95% of the expected vote is in.The two biggest swings came in South Texas, where a dramatic Democratic improvement among Latino voters helped power massive congressional victories.Newly elected Democrats coul...