Sara Gideon

President Trump campaigned with Sen. Martha McSally, R-Ariz., in Prescott, Ariz., this month. McSally is a top target of Senate Democrats, who are hoping to flip her seat blue on Election Day.

Politics

The 13 Races That Will Determine The Senate Majority

Susan Davis

These are the 13 races that will determine control of the Senate in the next Congress. To win control, Democrats would need to net-gain four seats, or three seats plus control of the White House.

Sen. Susan Collins campaigns in western Maine in September. Collins says she's confident Maine voters make a distinction between their feelings about President Trump and her this November.

Politics

Amid Trump Turmoil, Sen. Susan Collins Tries To Shift Focus From National Politics

Steve Mistler

The long-serving Maine senator faces unhappiness from both the left, for her votes for President Trump's judicial nominees, and the right, for past criticism she has made about the president.

Republican U.S. Sen. Susan Collins (left) of Maine faces a tough challenge from Democratic Maine House Speaker Sara Gideon.

Politics

Ranked-Choice Voting Could Play A Deciding Role In Maine's Senate Race

Brian Naylor

The contest between Republican Sen. Susan Collins and her Democratic challenger, Maine House Speaker Sara Gideon, could determine control of the U.S. Senate.

Democratic U.S. Senate candidate MJ Hegar speaks to supporters in Austin, Texas, in March.

Politics

Texas Democrat MJ Hegar To Face Cornyn; Maine's Sara Gideon Will Challenge Collins

Scott Neuman

In a night of primaries, President Trump's personal physician Ronny Jackson secured a nomination to represent a Texas congressional district and Jeff Sessions lost a bid to regain his Senate seat.