2016 Senate Race Ratings for February 9, 2017

The chart below provides a spectrum that analyzes the vulnerability (the chances of the seat switching parties) of the Senate races up this cycle.

Solid: These races are not considered competitive and are not likely to become closely contested.

Likely: These seats are not considered competitive at this point but have the potential to become engaged.

Lean: These are considered competitive races but one party has an advantage.

Toss Up: These are the most competitive races; either party has a good chance of winning.

Senators with names in parentheses are retiring.