Pro-McCormick Super PAC Plans $30 Million Ad Blitz in Pennsylvania

The main super PAC supporting David McCormick, the Republican running for Senate in Pennsylvania, is reserving $30 million worth of television ads in the state, a major escalation in the campaign to unseat Senator Bob Casey, the Democratic incumbent.

The new reservation from the super PAC, known as Keystone Renewal, comes on top of the $82 million that both sides have already spent on, or reserved in, campaign ads in the state, according to AdImpact, which tracks advertising purchases.

So far, the group has spent about $3.6 million on mostly positive ads about Mr. McCormick. But the super PAC plans to pivot to more negative spots aimed at Mr. Casey once the new ad buy begins, according to a person briefed on the group’s plans.

Kaelan Dorr, a spokesman for the super PAC, took aim at Mr. Casey as a supporter of President Biden’s “left-wing agenda,” suggesting that assertion might be a line of attack in the new ads.

“Keystone Renewal is all in to elect David McCormick to the U.S. Senate,” Mr. Dorr said.

According to the most recently available campaign finance reports, the super PAC had raised more than $21 million as of April 3, much of it from Wall Street executives and investors.

The largest contributions to the super PAC have been $10 million from Ken Griffin, the chief executive of Citadel; $2 million from Paul Singer, the president of Elliott Management; and $1 million from Jeff Yass, a founder of Susquehanna International Group.

So far, Mr. Casey’s campaign and the Democratic Senatorial Campaign Committee, the main campaign arm of Senate Democrats, have spent the most on ads in the race. The committee has spent about $9 million on broadcast, cable and digital ads, while Mr. Casey’s campaign has spent $8.5 million.

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