According to the Cook Political report, Republicans are likely to gain at least two Senate seats and wrest control of the upper chamber, as a number of key races have moved in the GOP's favor in the final stretch before election day.
According to Cook, Democrats will not gain seats as Republicans will net at least two or three in a huge wave.
The Wisconsin Senate race has been moved from a toss-up to a Lean Republican one by Cook.
The latest poll shows Masters with a one-point lead over Kelly, who had a double-digit lead in August.
In the Georgia Senate race, Sen. Raphael Warnock leads Republican Herschel Walker by four points, but neither is likely to get 50% of the votes needed to avoid a second round of voting.
The polls show a tight race for the past month, but Republican Adam Laxalt appears to have made inroads with voters since mid-September, gaining eight points to lead Democrat Catherine Masto by five points.
Mehmet Oz has a two-point lead over John Fetterman in the Pennsylvania Senate race according to a final poll.
More than 70%. The odds that Democrats would retain control of the Senate were 16 points lower as of Friday.
The Senate race in New Hampshire is still very close, but has moved slightly in favor of the Democrats over the last week.
The Senate will be decided in mid-term elections.
Senate forecasts have moved toward Republicans in the final stretch before the election.