State Sen. Matt Dolan of Ohio, a Republican, announced Tuesday that he would run for the U.S. Senate against Sherrod Brown, one of the most vulnerable Democrats in 2024.

It will be Dolan’s second Senate campaign, after he finished third in the Republican primary for an open seat in Ohio last year. The winner of that primary, J.D. Vance, went on to win the general election.

Dolan’s family owns the Cleveland Guardians baseball team, and he used millions of dollars of his own money to fund his first campaign, in which he won about 23% of the primary vote — finishing significantly behind Vance and narrowly behind the second-place finisher, Josh Mandel.

In his campaign announcement Tuesday, Dolan, the chair of the Ohio Senate’s finance committee, emphasized border security, fighting inflation and his support for the police. He accused Brown of “blind loyalty to his party.”

“Ohioans want a problem solver who has successfully faced big challenges impacting our quality of life, not the political blame game that lacks commonsense solutions,” he said.

A tough line on immigration was also a hallmark of Dolan’s 2022 campaign, although he broke from his opponents’ hard-right line on at least one specific policy: He supported the preservation of H-1B visas that allow immigrants to work temporarily in certain industries.