Senate rankings: 5 seats most likely to flip

The battle for the Senate is set to hit a crescendo in the coming weeks as campaigns reach another gear and voters increasingly tune in after Labor Day.

Republicans have long been the favorite to win back the upper chamber, but Vice President Harris replacing President Biden has further scrambled the playing field for both parties.

As the weeks and months have wound down, so has the battlefield of contests — with Montana and Ohio likely comprising the ballgame for both parties. 

While the GOP was hopeful to nab more seats, those...