After Supreme Court Justice Antonin Scalia passed away last February, GOP leaders have refused to even consider any nominee President Barack Obama nominates to fill the court’s vacant seat since it is so close to Election Day. They feel that the job of appointing a new justice should be left to the next president.

They were not counting on a Hillary Clinton win, however.

Sen. John McCain of Arizona pressed Pennsylvania voters today to re-elect fellow GOP Sen. Pat Toomey, explaining how the Senate Republicans will fight to stop any potential Clinton appointment to the Supreme Court.

“I promise you that we will be united against any Supreme Court nominee that Hillary Clinton, if she were president, would put up,” McCain said. “I promise you. This is where we need the majority.”

McCain isn’t the Republican to admit that the GOP is fighting together to prevent President Obama’s choice of Judge Merrick Garland from filling in the position left open by Scalia’s death.

Former House Majority Leader Tom DeLay also told Senate GOP members that they should stick together and refuse to consider any Supreme Court nominee during a Democratic presidency.

Ted Cruz said in February that “if the Democrats want to replace” Scalia, “they need to win the election.”