Senate gridlock could worsen with Romney, Sinema, Manchin retirements: experts

The already narrowly divided Senate could see more gridlock in 2025, with several of the less partisan lawmakers from both sides of the aisle departing.

As Sens. Mitt Romney, R-Utah, Kyrsten Sinema, I-Ariz., and Joe Manchin, D-W.Va., each prepare to leave the Senate, questions loom over the upper chamber's future ability to legislate across party lines. 

"The Senate is trending to be much more of a hostile atmosphere as more moderate or independent-minded senators are retiring," said Republican strategist Ron Bonjean...