Since our last prediction map analysis, there have been major changes in the probabilities for each party to win the senate. Democrats are now favored to win, and have seen a rapid increase in their chances in states such as Alaska and Texas. To view the change since our last prediction map, click on "Change from Mar 6", and toggle it on.
Overview:
Democrats are the clear winners of this week, seeing huge increases in states they need to gain Senate control. They’ve risen by double-digit numbers in Alaska and Texas (if they win both along with the seats they are favored to win, they control the senate) and have held on to their margins in all of their favored seats. However, they haven’t seen gains as big in states like Ohio, Iowa, and Nebraska, where Democrats have a greater than 30% chance of winning.
Good news for Democrats:
Democrats have seen major improvements in their odds for key states. Most notably in Texas, where Talarico won the primary and now faces off against either Cornyn or Paxton. Trump has not yet endorsed either Republican candidate, and the race between the two will benefit Talarico, whose race did not lead to a runoff.
Texas is a key state that Dems must flip to win the Senate. They put up an extraordinary performance in the primary, outpacing Republicans in primary votes (unheard of in previous years). Despite Democratic gains, Republicans are still ever so slightly favored to win the seat.
The biggest win for Democrats since last month (besides becoming the favorite to win senate control) is flipping Alaska. In our previous weeks, Alaska leaned red, but now leans blue by a small, but decent margin. Alaska is another state that Democrats must win for senate control, and has brought the seat predictions to 50/50. Keep in mind that Dems need 51 seats for senate control as Vice President Vance will act as the tiebreaking vote. Mary Peltola has run a strong campaign, and is current the favorite to win by a slim margin.
Democrats have also seen a large shift in Montana, which remains a likely red seat, and small advances in Florida and North Carolina, along with the majority of states with Senate races in November.
Good news for Republicans:
Republicans do not have much to celebrate this week. Trump's declining popularity has hurt their chances, and they are no longer the favorite to win the Senate. However, there are a few small wins that can be pointed to
For one, they've held on to their lead in key states such as Nebraska and Ohio. If Republicans lose more than two races out of Texas, Alaska, Iowa, Nebraska, and Ohio, they lose senate control. They're at roughly the same spot in all but Alaska and Texas as they were a month ago, and they cannot afford to slip in any more states.
Senate control:
Democrats have flipped the chances of winning the Senate for the first time, and although the odds are essentially 50/50, this is incredible news for Democrats whose prospects looked bleak at the beginning of 2025. Democrats are now the clear favorites to win the House, and Senate control would give them control of at least one branch of government for the first time since Trump's innauguration.