McCormick will attend Senate orientation over Schumer objections

The Senate majority leader doesn’t want him there because Bob Casey hasn’t conceded.

Republican Dave McCormick said Monday he is off to Washington, D.C. for freshman orientation at the U.S. Senate, even as the chamber’s Democratic leaders are withholding an invitation while waiting for the remaining votes to be counted in Pennsylvania.

The Associated Press Friday declared McCormick the winner in an upset victory, but his opponent, Democratic incumbent Sen. Bob Casey, has not conceded.

“Look...