Sen. Rob Portman (R-Ohio) on Monday announced he will not seek reelection in 2022, citing partisan gridlock in Congress and political polarization as the primary reasons. “I feel fortunate to have been entrusted by the people of Ohio to represent them in the U.S. Senate. Today, I am announcing that I have made a decision not to run again in 2022,” Portman said in a statement. The Republican senator went on to say, “I don’t think any Senate office has been more successful in getting things done, but honestly, it has gotten harder and harder to break through the partisan gridlock and make progress on substantive policy, and that has contributed to my decision.” Separately, the United States has become “increasingly polarized where members of both parties are being pushed further to the right and further to the left, and that means too few people who are actively looking to find common …