Baltimore County Executive Johnny Olszewski Jr.’s bid for Congress got a boost Wednesday from two key endorsements. Retiring Rep. Dutch Ruppersberger, who Olszewski is hoping to replace, and Rep. Steny Hoyer, who previously served as the House majority leader, traveled to Towson for an appearance announcing their support. Hoyer and Ruppersberger both said they’ve known Olszewski for decades, and that he was the right candidate to send to Congress.