 And now a quick look at the top stories we're working on at WTOP this evening. President Joe Biden assuring supporters in Madison, Wisconsin, he is staying in the race amid growing concern from fellow Democrats about the viability of his campaign. And a Metro Transit police officer shot and seriously wounded a man who police say was trying to carjack two different drivers in the Roslyn area this morning. Keep it here for full details on these stories in the minutes ahead.