Iowa GOP Sen. Chuck Grassley seeking reelection for 8th term.

DES MOINES, IOWA » Iowa Sen. Chuck Grassley, the longest-serving Republican senator, said Friday that he will seek an eighth term in 2022, giving the party more confidence in holding the seat as they fight to overtake Democrats’ one-vote margin.

The senator, who turned 88 this month and has held the seat for 40 years, said in an announcement posted on Twitter that there is “a lot more to do, for Iowa.”

Grassley’s decision allows GOP Senate strategists to spend more time and money on key seats being vacated by retiring Republican senators in Ohio, Pennsylvania and North Carolina.