As November approaches, control of the Senate is growing increasingly unpredictable as Republican gains in key states are offset by new vulnerabilities in unexpected places.
The good news for Republicans is that they’re increasingly well positioned to win the races they identified as most crucial to securing a Senate majority at the start of the cycle.
In the four states Mitt Romney won where Democratic incumbents are on the ballot, Republican challengers are leading recent polls in three: Alaska, Arkansas, and Louisiana. The exception is North Carolina, where Sen. Kay Hagan has opened up a small lead over challenger Thom Tillis.
At the start of the cycle, Republicans might have assumed that would be enough to win a majority. They need six seats to take over the Senate and went into 2014 heavily favored to win seats in South Dakota, Montana, and West Virginia opened up by Democratic retirements.
In fact, things are going even better than they expected. In Iowa, Republican Joni Ernst has rode spectacular fundraising numbers and a weak campaign from Democratic Congressman Bruce Braley into a polling lead of her own. In Colorado, a state where Democrats have dominated statewide elections for a decade, Democratic Sen. Mark Udall trails Republican Congressman Cory Gardner in several polls, who earned a surprise endorsement on Friday from the Denver Post. Obama won both of these states twice and the Democrats began the cycle as favorites in both cases.
Yet despite these gains, election forecast models mostly give Republicans the same chance of a takeover as they have since the general election began. Nate Silver’s FiveThirtyEight put the GOP’s odds of winning a majority at about 58% as of Friday, not much better than a coin flip and almost exactly the same place their model found things two months ago.
The odds may have stayed the same, but there’s been a lot of movement on the map to keep them there. Democrats have made corresponding gains elsewhere and new states have come into play almost out of nowhere.
The biggest development is Kansas, where center-left independent Greg Orman has emerged as a serious threat to unseat Republican Sen. Pat Roberts, a candidate observers assumed was safe just months ago. A shock loss there would give Democrats a critical buffer that might offset an otherwise devastating Republican win in Iowa or Colorado.
Now South Dakota looks potentially vulnerable for Republicans as well. Recent polls have shown GOP candidate Mike Rounds, who is bogged down by a scandal over immigration visas, running surprisingly close against populist Democrat Rick Weiland and an independent and former Republican lawmaker, Larry Pressler. Like Orman, Pressler seems more likely to caucus with Democrats based on his current positions, though neither has said which party they’d team up with if elected. The Democratic Senatorial Campaign Committee recently announced it would invest $1 million in the race and the National Republican Senatorial Committee is responding with $1 million of its own.









