HARRISBURG — A day after Republicans accused Democratic Gov. Josh Shapiro of betraying their trust in negotiations toward an overdue state budget, Mr. Shapiro on Thursday pinned the blame for the still-unfinished process squarely on Senate Republicans.

“Senate Republicans did not close the deal with their House counterparts,” Mr. Shapiro said at a news conference in the Capitol, dissecting a budget negotiation process that typically involves the governor’s office and the majority party from each chamber of the Legislature.

Hours later, Senate President Pro Tempore Kim Ward, R-Westmoreland, accused Mr. Shapiro of painting a misleading picture. “The truth is there was a deal regardless of what Gov. Shapiro says publicly and he knows there was a deal,” she said in a statement.

Republicans control the Senate by a 28-22 margin and Democrats control the House 102-101. Mr. Shapiro’s appearance — his first news conference since budget negotiations ramped up — came a day after Republicans’ generally favorable views of his five-month-old governorship were shattered. The cause they cited was Mr. Shapiro’s announcement Wednesday he would line-item veto a $100 million appropriation in a fiscal 2024 spending bill passed by the Senate and sent to the House.