Senate Minority Leader Mitch McConnell (Ky.) on Friday joined a growing number of Republicans who have announced their opposition to the nomination of Solicitor General Elena Kagan to the Supreme Court.

McConnell is the third GOP Senator to come out Friday against Kagan’s nomination. Sens. Orrin Hatch (Utah) and Lisa Murkowski (Alaska) also said they would vote “no.” Kagan’s hearings before the Judiciary Committee wrapped up on Thursday. The panel announced it would vote on her installment on July 13, although Republicans might try to delay that by one week.

In a statement, McConnell said he did not believe Kagan could put aside her partisan political beliefs as a justice.

“I do not have confidence that if she were confirmed to a lifetime position on the Supreme Court, she would suddenly constrain the ardent political advocacy that has marked much of her adult life. The American people expect a justice who will impartially apply the law, not one who will be a rubberstamp for the Obama administration or any other administration. For these reasons, I will oppose Ms. Kagan’s confirmation,” he said.