John Cornyn said he'd back an effort to install term limits for the Republican Senate leader as he seeks to win the post

Sen. John Cornyn (R-Texas) is throwing his weight behind an effort to instate term limits for the next Senate Republican leader, as he seeks to differentiate himself from the still emerging field.

"One reason I am running to be the next Republican Leader is because I believe the Senate needs more engagement from all of my colleagues, and that includes the opportunity for any Member to serve in Leadership," the Texan wrote in a post on X, formerly known as Twitter. "I will support a conference vote to change the rules and institute term limits for the Republican Leader."

Cornyn's only declared opponent — to date — is current Minority Whip John Thune (R-S.D.), though the field could well grow in the ensuing months. He previously held the spot currently occupied by Thune and also served twice as the head of the National Republican Senatorial Committee.